Games like DG2: Defense Grid 2 on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like DG2: Defense Grid 2 are available at the bottom of the page.
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AI War: Fleet Command
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
Sanctum
You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
Axon TD: Uprising - Tower Defense
Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.
Worbital
With the shifting gravity on your side, aim your cannons, blast your enemies and enjoy the fireworks. Worbital is a real-time strategic artillery game in space, peppered with a heavy dose of cosmic chaos. The goal: be the last civilization standing!
Fortified
Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.
Space Engineers
Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive.
StarMade
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Castle Story
Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little creatures called Bricktrons. Design and build your own castles, expand your territory in a vast landscape and defend your Bricktrons against onslaughts of hostile creatures.
Sanctum 2
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
Gratuitous Space Battles
Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.
Eden Rising
Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal to defend your bases and defeat hordes of hostile monsters. Play solo or up to 8-player online!
Time Rifters
Be your own teammates in this unique single-player co-op shooter!
Out of Space
Strategy co-op online multiplayer game about living on a spaceship with your roommates. You'll need to generate resources, take care of a deadly alien infestation, upgrade your appliances and build your sustainable space home. Living together is never easy, especially when you are in outer space!
Stellar Warfare
Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!
Istrolid
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
ENDLESS™ Space 2
ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?
Planetary Annihilation: TITANS
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
Aegis Defenders
Take on wild beasts, ruthless soldiers, and ancient gods in this 2D Action-Platformer inspired by Tower-Defense combat.
Beware Planet Earth
Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!
Dungeon of the ENDLESS™
Dungeon of the ENDLESS™ is a Rogue-Like Dungeon-Defense game, in which the player and their team of heroes must protect the generator of their crashed ship while exploring an ever-expanding dungeon, all while facing waves of monsters and special events as they try to find their way out...
Natural Selection 2
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!
X-Morph: Defense
Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.
CRYPTARK
Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.Most played games like DG2: Defense Grid 2 on Steam
Take a look at the top games like DG2: Defense Grid 2 that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Satisfactory
Similarity 67% Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven! Satisfactory is a base-building, automation and open world game developed by Coffee Stain Studios and published by Coffee Stain Publishing. Released on September 10th 2024 has received 229,040 reviews of which 222,475 were positive and 6,565 were negative resulting in an impressive rating of 9.6 out of 10. The game has hit the top spot as the #1 most played game like DG2: Defense Grid 2, thanks to its 12,693 peak concurrent players over the last day.
9.6
222,475
6,565
12,693
players
2. Space Engineers
Similarity 76% Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive. Space Engineers is a space, sandbox and building game developed and published by Keen Software House. Released on February 28th 2019 has received 131,878 reviews of which 116,777 were positive and 15,101 were negative resulting in a rating of 8.7 out of 10. While seeing 4,402 players online at once in the last 24 hours, this game is currently ranked #2 among games like DG2: Defense Grid 2 based on player count.
8.7
116,777
15,101
4,402
players
3. Oxygen Not Included
Similarity 66% Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a colony sim, base-building and survival game developed and published by Klei Entertainment. Released on July 30th 2019 has received 127,555 reviews of which 123,406 were positive and 4,149 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 4,349 players online at once in the last 24 hours, this game is currently ranked #3 among games like DG2: Defense Grid 2 based on player count.
9.5
123,406
4,149
4,349
players
4. STAR WARS™ Empire at War - Gold Pack
Similarity 66% Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld? STAR WARS™ Empire at War - Gold Pack is a strategy, rts and space game developed by Petroglyph and published by LucasArts, Lucasfilm and Disney. Released on May 25th 2010 has received 38,906 reviews of which 37,985 were positive and 921 were negative resulting in an impressive rating of 9.6 out of 10. With 1,923 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like DG2: Defense Grid 2.
9.6
37,985
921
1,923
players
5. ASTRONEER
Similarity 62% Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends. ASTRONEER is a multiplayer, open world and open world survival craft game developed and published by System Era Softworks. Released on February 05th 2019 has received 128,356 reviews of which 118,267 were positive and 10,089 were negative resulting in an impressive rating of 9.1 out of 10. With 1,230 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like DG2: Defense Grid 2.
9.1
118,267
10,089
1,230
players
6. Star Trek Online
Similarity 64% In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before. Star Trek Online is a free to play, sci-fi and massively multiplayer game developed by Cryptic Studios and published by Arc Games. Released on January 31st 2012 has received 20,043 reviews of which 15,849 were positive and 4,194 were negative resulting in a rating of 7.8 out of 10. With 1,075 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like DG2: Defense Grid 2.
7.8
15,849
4,194
1,075
players
7. Mindustry
Similarity 66% An open-ended factory management game with RTS and tower defense elements. Mindustry is a base-building, resource management and tower defense game developed and published by AnukenDev. Released on September 26th 2019 has received 21,635 reviews of which 20,742 were positive and 893 were negative resulting in an impressive rating of 9.4 out of 10. With 919 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like DG2: Defense Grid 2.
9.4
20,742
893
919
players
8. Void Crew
Similarity 62% Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic! Void Crew is a co-op, multiplayer and space sim game developed by Hutlihut Games and published by Focus Entertainment. Released on November 25th 2024 has received 6,413 reviews of which 5,646 were positive and 767 were negative resulting in a rating of 8.5 out of 10. With 750 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like DG2: Defense Grid 2.
8.5
5,646
767
750
players
9. Supreme Commander: Forged Alliance
Similarity 66% The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike. Supreme Commander: Forged Alliance is a strategy, rts and sci-fi game developed by Gas Powered Games and published by Square Enix. Released on September 28th 2011 has received 13,403 reviews of which 12,982 were positive and 421 were negative resulting in an impressive rating of 9.4 out of 10. With 706 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like DG2: Defense Grid 2.
9.4
12,982
421
706
players
10. ENDLESS™ Space 2
Similarity 73% ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire? ENDLESS™ Space 2 is a strategy, space and sci-fi game developed by AMPLITUDE Studios and published by SEGA. Released on May 18th 2017 has received 22,121 reviews of which 18,469 were positive and 3,652 were negative resulting in a rating of 8.2 out of 10. With 414 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like DG2: Defense Grid 2.
8.2
18,469
3,652
414
players
Best deals on games like DG2: Defense Grid 2 on Steam
Discover fantastic savings with the best discounts on a variety of games like DG2: Defense Grid 2 available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like DG2: Defense Grid 2.
1. We Are The Dwarves
Similarity 69% We Are The Dwarves is a real-time tactical adventure where you take control of three Dwarven astronauts and lead them through the hordes of enemies in the depths of their Universe. We Are The Dwarves is a indie, adventure and action game developed and published by Whale Rock Games. Released on February 25th 2016 has received 1,317 reviews of which 892 were positive and 425 were negative resulting in a rating of 6.6 out of 10. Featuring a massive 97% discount, this game currently holds the #1 spot in the best deals for games like DG2: Defense Grid 2.
6.6
892
425
-97%
43.00€
1.29€
2. Homeworld: Deserts of Kharak
Similarity 66% A ground-based RTS prequel to the classic Homeworld games. Assemble your fleet and lead them to victory on the shifting sands of Kharak in this compelling strategy game for PC from Blackbird Interactive. Homeworld: Deserts of Kharak is a strategy, rts and sci-fi game developed by Blackbird Interactive and published by Gearbox Publishing. Released on January 20th 2016 has received 8,484 reviews of which 6,772 were positive and 1,712 were negative resulting in a rating of 7.8 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in games like DG2: Defense Grid 2.
7.8
6,772
1,712
-95%
45.00€
2.25€
3. Deathtrap
Similarity 64% Deathtrap is a Tower Defense game with strong action-RPG elements, a game of vicious tricks, killing machines, rotating blades and splattering blood. Deathtrap is a tower defense, rpg and action game developed and published by NeocoreGames. Released on February 04th 2015 has received 2,189 reviews of which 1,837 were positive and 352 were negative resulting in a rating of 8.1 out of 10. Thanks to its incredible 93% discount, this game is now the #3 best deal in games like DG2: Defense Grid 2.
8.1
1,837
352
-93%
18.57€
1.30€
4. Orcs Must Die! 2
Similarity 69% You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment. Orcs Must Die! 2 is a tower defense, co-op and action game developed and published by Robot Entertainment. Released on July 30th 2012 has received 19,251 reviews of which 17,894 were positive and 1,357 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 92% discount, this title has earned the #4 position in the best deals for games like DG2: Defense Grid 2.
9.1
17,894
1,357
-92%
12.50€
1.00€
5. Planets Under Attack
Similarity 63% Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies. Planets Under Attack is a strategy, indie and space game developed by Targem Games and published by TopWare Interactive. Released on September 27th 2012 has received 1,114 reviews of which 806 were positive and 308 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 92% discount, this title has earned the #5 position in the best deals for games like DG2: Defense Grid 2.
7.0
806
308
-92%
12.50€
1.00€
6. I am not a Monster: First Contact
Similarity 70% Retro sci-fi tactical turn-based strategy with an exciting storyline. The Albatross space liner is overrun by lizard-like monsters that can infect humans and turn them into their own kind. Save the passengers and defeat the hostile creatures. I am not a Monster: First Contact is a turn-based tactics, strategy and sci-fi game developed by Cheerdealers and published by Alawar. Released on September 27th 2018 has received 1,255 reviews of which 965 were positive and 290 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 90% discount, this title has earned the #6 position in the best deals for games like DG2: Defense Grid 2.
7.4
965
290
-90%
10.79€
1.07€
7. Original War
Similarity 64% An American geological expedition, under a UN mandate, assesses the natural resources in a distant part of Siberia, deep in the trackless steppes of Eastern Russia. But instead of oil, they discover a deposit of a hitherto unknown mineral. Original War is a strategy, rts and sci-fi game developed by Altar Games and published by Bohemia Interactive. Released on January 27th 2014 has received 2,025 reviews of which 1,922 were positive and 103 were negative resulting in an impressive rating of 9.0 out of 10. Currently offered at a significant 80% discount, this title has earned the #7 position in the best deals for games like DG2: Defense Grid 2.
9.0
1,922
103
-80%
9.99€
1.99€
8. Rock of Ages
Similarity 64% A rock-solid combination of rock-rolling action, deep strategy, and captivating art and music from different ages of history, this is a game of crush or be crushed! Rock of Ages is a comedy, strategy and indie game developed by ACE Team and published by SEGA. Released on September 07th 2011 has received 3,759 reviews of which 3,454 were positive and 305 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 80% discount, this title has earned the #8 position in the best deals for games like DG2: Defense Grid 2.
8.8
3,454
305
-80%
9.99€
1.99€
9. Rock of Ages 2: Bigger & Boulder™
Similarity 67% The greatest rock-racing, tower defense, art history game is back! Like the title says, Bigger & Boulder cranks up the surrealism and gameplay with chaotic 4P multiplayer, new time periods, and improved graphics, physics, and destructibility powered by UE4 to be, well… BIGGER AND BOULDER. Rock of Ages 2: Bigger & Boulder™ is a strategy, action and comedy game developed by ACE Team and published by SEGA. Released on August 28th 2017 has received 3,329 reviews of which 2,833 were positive and 496 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 80% discount, this title has earned the #9 position in the best deals for games like DG2: Defense Grid 2.
8.2
2,833
496
-80%
14.99€
2.99€
10. Refactor
Similarity 66% Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition. Refactor is a tower defense, rogue-lite and building game developed by GAGA and published by LightOn Game. Released on March 28th 2022 has received 448 reviews of which 384 were positive and 64 were negative resulting in a rating of 8 out of 10. Currently offered at a significant 80% discount, this title has earned the #10 position in the best deals for games like DG2: Defense Grid 2.
8
384
64
-80%
4.99€
0.99€
Free games like DG2: Defense Grid 2 on Steam
Check out this fantastic list of free-to-play games like DG2: Defense Grid 2 you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like DG2: Defense Grid 2.
1. Star Trek Online
Similarity 64% In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before. Star Trek Online is a free to play, sci-fi and massively multiplayer game developed by Cryptic Studios and published by Arc Games. Released on January 31st 2012 has received 20,043 reviews of which 15,849 were positive and 4,194 were negative resulting in a rating of 7.8 out of 10. With 1,075 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like DG2: Defense Grid 2.
7.8
15,849
4,194
1,075
players
2. Bloons TD Battles
Similarity 69% Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses. Bloons TD Battles is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on April 20th 2016 has received 29,071 reviews of which 26,380 were positive and 2,691 were negative resulting in a rating of 8.9 out of 10. Thanks to its free to play tag and a daily player base of 196, this game has secured the #2 spot in the ranking of free games like DG2: Defense Grid 2.
8.9
26,380
2,691
196
players
3. Hades' Star
Similarity 66% A unique space strategy game where thousands of players participate in one shared galaxy. Hades' Star is a free to play, space and strategy game developed and published by Parallel Space Inc. Released on February 27th 2019 has received 2,561 reviews of which 1,864 were positive and 697 were negative resulting in a rating of 7.1 out of 10. Thanks to its free to play tag and a daily player base of 108, this game has secured the #3 spot in the ranking of free games like DG2: Defense Grid 2.
7.1
1,864
697
108
players
4. Awesomenauts - the 2D moba
Similarity 67% Use your power, show your might! Play this Multiplayer Online Battle Arena (MOBA) game for FREE now! AWESOMENAUTS combines 2D platforming with team-based strategy and hero based action. Whether you are a new recruit or an intergalactic legend, play AWESOMENAUTS! Awesomenauts - the 2D moba is a moba, multiplayer and 2d game developed by Ronimo Games and published by Atari. Released on August 01st 2012 has received 26,719 reviews of which 22,609 were positive and 4,110 were negative resulting in a rating of 8.3 out of 10. The game currently holds the #4 spot among the most played free games like DG2: Defense Grid 2.
8.3
22,609
4,110
90
players
5. Zero-K
Similarity 64% With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps. Zero-K is a strategy, free to play and rts game developed and published by Zero-K Team. Released on April 27th 2018 has received 3,885 reviews of which 3,639 were positive and 246 were negative resulting in an impressive rating of 9 out of 10. The game currently holds the #5 spot among the most played free games like DG2: Defense Grid 2.
9
3,639
246
86
players
6. TOXIKK™
Similarity 62% FRAG LIKE IT'S 1999! TOXIKK plays as if today's military shooters never existed: Designed as a spiritual successor to the FPS giants of the late 90s and early 2ks, TOXIKK carefully evolves their mechanics with modern technology and fresh ideas elaborated with Arena-FPS enthusiasts. TOXIKK™ is a fps, action and free to play game developed by Reakktor Studios and published by Schwiezer System GmbH. Released on September 10th 2016 has received 5,795 reviews of which 4,472 were positive and 1,323 were negative resulting in a rating of 7.5 out of 10. The game currently holds the #6 spot among the most played free games like DG2: Defense Grid 2.
7.5
4,472
1,323
61
players
7. AirMech
Similarity 69% AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious! AirMech is a free to play, strategy and multiplayer game developed and published by Carbon Games. Released on March 30th 2018 has received 10,655 reviews of which 8,961 were positive and 1,694 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #7 spot among the most played free games like DG2: Defense Grid 2.
8.2
8,961
1,694
35
players
8. Battle Islands
Similarity 69% Battle friends over air, land and sea in this epic WW2-themed battle strategy game. Battle Islands is a strategy, free to play and multiplayer game developed by DR Studios and published by 505 Games. Released on August 06th 2014 has received 3,428 reviews of which 2,605 were positive and 823 were negative resulting in a rating of 7.4 out of 10. The game currently holds the #8 spot among the most played free games like DG2: Defense Grid 2.
7.4
2,605
823
20
players
9. Art of War: Red Tides
Similarity 69% Art of War: Red Tides is a fair multiplayer strategy game that allows different teams on the same platform (e.g. smartphones, PC, etc.) to battle against each other. You will encounter players around the world! Art of War: Red Tides is a free to play, strategy and multiplayer game developed and published by Game Science. Released on December 22nd 2016 has received 6,897 reviews of which 5,440 were positive and 1,457 were negative resulting in a rating of 7.7 out of 10. The game currently holds the #9 spot among the most played free games like DG2: Defense Grid 2.
7.7
5,440
1,457
13
players
10. Planet S
Similarity 63% Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction. Planet S is a strategy, city builder and multiplayer game developed and published by Glimmerlight Games. Released on October 28th 2023 has received 2,572 reviews of which 2,358 were positive and 214 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #10 spot among the most played free games like DG2: Defense Grid 2.
8.8
2,358
214
9
players