Games like OTTTD on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like OTTTD are available at the bottom of the page.
Filters & Lists
The Valiant
Embark on a journey of brotherhood and redemption in The Valiant, a squad-based RTS set in 13th Century Europe and the Middle East. Command and level-up your medieval knights as you fight through an epic SP campaign, then take your skills online in both cooperative and competitive MP modes.
Planets Under Attack
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.
Steampunk Tower 2
Steampunk Tower 2 is an action-strategy game set in the alternative Steampunk universe. In Lord Bingham’s military service there is a new secret weapon under your command, the gigantic aircraft Carrier transporting the Battle Tower.
Rencounter
Rencounter is a difficult, turn-based, RPG, roguelike game with a mysterious atmosphere. Help your squad survive while navigating through a network of tunnels and rooms. Distribute provisions and medicine to keep them alive.
Runestone Keeper
Runestone Keeper is a roguelike dungeon crawler that blends classic RPG elements and turn based strategy. Heroes, monsters, equipment, events, magic and skills, traps and devices, shrines and altars, Goddesses and merchants. Choose your weapon and begin an epic adventure!
PERFECT ANGLE: The puzzle game based on optical illusions
Challenge your mind with puzzles based on optical illusions. Find the perfect angle by rotating the camera to clean up the chaos and find a shocking story fraught with twists.
Yet Another Zombie Defense HD
Top-down zombie shooter with tower defense elements featuring up to 4 players local and online co-op. Build your base by day, defend it by night, put your skills to the test to stay alive as long as possible! Darkness is coming. How long can YOU survive?
Kingdom Rush 5: Alliance TD
While a formidable evil emerges, an unexpected alliance is taking shape! It will take the finest warriors of Linirea and the relentless Dark Army to stop it. Beware! Though they may journey side by side the ever-changing winds of fate could swiftly alter their course.
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.
Let Them Come
Let Them Come is a fast paced pixel art shoot ‘em up. Twitchy trigger fingers and focused battle tactics are the order of the day as wave after wave of alien-like creatures try to take you down.
Afghanistan '11
Afghanistan '11 is the sequel to the highly praised and innovative Vietnam '65. It enhances and builds on it: Afghanistan '11 changes the paradigm of wargaming and manages to bring Counter-Insurgency and guerrilla warfare to your screen, properly represented thanks to a revolutionary gameplay formula!
Journey of Greed
This is a perfect hybrid of social board game and strategy card game. Steal, set traps, assassinate, escape, mind games... Compete online with three other players at each adventure and use every mean possible to gain the most coins.
Hegemony III: Clash of the Ancients
Command armies, manage resources, and build an empire in this real-time strategy wargame from Longbow Games. Will Rome fulfil its destiny to rule the ancient world or will history be rewritten to forge a new Etruscan, Gallic, or Greek hegemony!
Party Hard
It's 3:00 a.m. Your neighbours are having a loud party. Stop them. Party Hard is tinyBuild's award-winning stealth strategy game about ruining parties by any means.
8-Bit Armies
8-Bit Armies is a retro Real-Time Strategy game. With a colorful, blocky voxel art style, 8-Bit Armies is Petroglyph's most fast-paced, friendly, and accessible RTS game to date. Featuring a campaign of 25 single-player missions, 12 co-op missions, multiplayer and skirmish modes.
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.
Ancient Wars: Sparta Definitive Edition
One of the most innovative Real-Time Strategy Games comes back totally renewed and improved to the smallest detail, with epic large scale battles, new civilizations, unit customization system never seen before in a game, 8K support, and much more.
GemCraft - Frostborn Wrath
The epic tower defense dark fantasy journey continues! Create powerful gems with various abilities and take on the battle against an endlessly flowing army of monsters, and face the growing darkness as you fight your way back towards the Spiritforge.
8-Bit Invaders!
8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.
Radio General
It's WWII. You're a general sitting in a tent. All you have is a map, and a radio. Can you win the battle? Radio General is a unique strategy game where you interact with your units over the radio using speech recognition. Test your mettle and relive famous battles as a WWII general.
Hexguardian
Hexguardian is a roguelite, tower defense game where you build your own maps with hexagonal tiles! Build and upgrade towers, recruit armies, learn spells, construct wonders and place hexagonal tiles to create a path to enhance your defenses. With plenty of game modes and talents to unlock!
Most played games like OTTTD on Steam
Take a look at the top games like OTTTD that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.
1. Tower Dominion
Similarity 40% Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line! Tower Dominion is a tower defense, strategy and base-building game developed and published by Parallel 45 Games. Released on May 07th 2025 has received 1,843 reviews of which 1,539 were positive and 304 were negative resulting in a rating of 8 out of 10. The game has hit the top spot as the #1 most played game like OTTTD, thanks to its 942 peak concurrent players over the last day.
8
1,539
304
942
players
2. The Perfect Tower II
Similarity 45% The Perfect Tower II is a mix between an incremental and a tower defense game. Build a town, manage resources and explore a variety of mini-games and tons of upgrades. Fully automate your game and watch numbers going up! The Perfect Tower II is a strategy, idler and tower defense game developed and published by Fire Sword Studios. Released on February 26th 2021 has received 3,639 reviews of which 3,201 were positive and 438 were negative resulting in a rating of 8.5 out of 10. While seeing 526 players online at once in the last 24 hours, this game is currently ranked #2 among games like OTTTD based on player count.
8.5
3,201
438
526
players
3. Bloons TD Battles 2
Similarity 40% From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons! Bloons TD Battles 2 is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on November 30th 2021 has received 32,320 reviews of which 27,193 were positive and 5,127 were negative resulting in a rating of 8.3 out of 10. While seeing 477 players online at once in the last 24 hours, this game is currently ranked #3 among games like OTTTD based on player count.
8.3
27,193
5,127
477
players
4. Thronefall
Similarity 46% A minimalist game about building and defending your little kingdom. Thronefall is a tower defense, strategy and city builder game developed and published by GrizzlyGames. Released on October 11th 2024 has received 20,544 reviews of which 19,846 were positive and 698 were negative resulting in an impressive rating of 9.4 out of 10. With 289 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like OTTTD.
9.4
19,846
698
289
players
5. Age of Darkness: Final Stand
Similarity 57% Age of Darkness: Final Stand is a dark fantasy survival RTS where you must illuminate, build and defend humanity’s last bastion against hordes of Nightmares. Set in the remnants of a kingdom consumed by a deadly fog, you decide. Will you hide in the light? Or take back your world. Age of Darkness: Final Stand is a tower defense, action rts and rts game developed and published by PlaySide. Released on January 15th 2025 has received 9,463 reviews of which 7,267 were positive and 2,196 were negative resulting in a rating of 7.5 out of 10. With 210 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like OTTTD.
7.5
7,267
2,196
210
players
6. Emberward
Similarity 43% Build twisting mazes with tetromino blocks and deploy unique towers in this engaging roguelite tower defense game! Emberward is a early access, tower defense and strategy game developed and published by Refic Games. Released on June 25th 2024 has received 2,685 reviews of which 2,609 were positive and 76 were negative resulting in an impressive rating of 9.3 out of 10. With 186 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like OTTTD.
9.3
2,609
76
186
players
7. Creeper World 3: Arc Eternal
Similarity 59% Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all. Creeper World 3: Arc Eternal is a tower defense, strategy and indie game developed and published by Knuckle Cracker. Released on March 27th 2014 has received 4,647 reviews of which 4,487 were positive and 160 were negative resulting in an impressive rating of 9.3 out of 10. With 172 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like OTTTD.
9.3
4,487
160
172
players
8. Kingdom Rush 5: Alliance TD
Similarity 44% While a formidable evil emerges, an unexpected alliance is taking shape! It will take the finest warriors of Linirea and the relentless Dark Army to stop it. Beware! Though they may journey side by side the ever-changing winds of fate could swiftly alter their course. Kingdom Rush 5: Alliance TD is a strategy, tower defense and 2d game developed and published by Ironhide Game Studio. Released on July 25th 2024 has received 8,855 reviews of which 7,763 were positive and 1,092 were negative resulting in a rating of 8.5 out of 10. With 143 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like OTTTD.
8.5
7,763
1,092
143
players
9. GemCraft - Frostborn Wrath
Similarity 42% The epic tower defense dark fantasy journey continues! Create powerful gems with various abilities and take on the battle against an endlessly flowing army of monsters, and face the growing darkness as you fight your way back towards the Spiritforge. GemCraft - Frostborn Wrath is a tower defense, difficult and rts game developed and published by Game in a Bottle. Released on January 10th 2020 has received 2,699 reviews of which 2,390 were positive and 309 were negative resulting in a rating of 8.5 out of 10. With 107 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like OTTTD.
8.5
2,390
309
107
players
10. Zero-K
Similarity 41% 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 3,922 reviews of which 3,678 were positive and 244 were negative resulting in an impressive rating of 9.0 out of 10. The game currently holds the #10 spot among the most played games like OTTTD.
9.0
3,678
244
93
players
Best deals on games like OTTTD on Steam
Discover fantastic savings with the best discounts on a variety of games like OTTTD available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like OTTTD.
1. Fell Seal: Arbiter's Mark
Similarity 41% Fell Seal: Arbiter's Mark is a turn-based tactical RPG with a focus on storytelling and strategic battles. Unfold a mature story as you progress through hand-crafted scenarios, controlling your own group of Arbiters, with each character customizable from a wide selection of classes and abilities! Fell Seal: Arbiter's Mark is a rpg, strategy and turn-based tactics game developed by 6 Eyes Studio and published by Fulqrum Publishing. Released on April 30th 2019 has received 5,987 reviews of which 5,281 were positive and 706 were negative resulting in a rating of 8.5 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like OTTTD.
8.5
5,281
706
-99%
29.99€
0.50€
2. Iratus: Lord of the Dead
Similarity 41% Iratus: Lord of the Dead is a turn-based tactical roguelike RPG set in a dark fantasy universe. Lead an army of undead to help an angry necromancer in his quest to reach the surface world and bring death to the mortal realms! Iratus: Lord of the Dead is a rpg, strategy and indie game developed by Unfrozen and published by Daedalic Entertainment. Released on April 23rd 2020 has received 7,810 reviews of which 6,694 were positive and 1,116 were negative resulting in a rating of 8.3 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like OTTTD.
8.3
6,694
1,116
-99%
29.99€
0.59€
3. Sword Legacy: Omen
Similarity 48% Survive strategic turn-based combat in this award-winning indie tactical RPG as you embark on an epic revenge quest in search of the long-lost Excalibur. Sword Legacy: Omen is a rpg, strategy and indie game developed by Firecast Studio and Fableware and published by Firecast Studio. Released on August 13th 2018 has received 705 reviews of which 458 were positive and 247 were negative resulting in a rating of 6.3 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in games like OTTTD.
6.3
458
247
-99%
17.99€
0.33€
4. HERO DEFENSE
Similarity 60% CREEPS CRUMBLE. HEROES RISE. Command a team of renegade heroes and impale, slash, tear and burn through legions of undead hell-bent on world domination. Your mission: to defeat the world’s most powerful vampire, Count Necrosis. HERO DEFENSE is a tower defense, strategy and indie game developed by Happy Tuesday and published by Headup. Released on May 31st 2016 has received 747 reviews of which 471 were positive and 276 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for games like OTTTD.
6.1
471
276
-99%
29.99€
0.56€
5. ReignMaker
Similarity 47% ReignMaker: Saving the World One Tower at a Time. ReignMaker is a match-3 game with tower defense, city building, and political strategy elements. Your policy decisions determine the fate of your city and the direction of the story. Your match-3 and tower defense skills determine the fate of the world. ReignMaker is a casual, strategy and indie game developed and published by Frogdice. Released on April 16th 2014 has received 410 reviews of which 260 were positive and 150 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #5 position in the best deals for games like OTTTD.
6.1
260
150
-99%
14.99€
0.20€
6. Fibbage XL
Similarity 41% NOTE: This game first appeared in The Jackbox Party Pack. It’s Fibbage XL – The Hilarious Bluffing Party Game in standalone form! Fool your friends with your lies, avoid theirs, and find the (usually outrageous) truth. “The mayor of Rabbit Hash, Kentucky is a ____.” Baby? Rabbit? Ham sandwich? Go! Fibbage XL is a strategy, casual and indie game developed and published by Jackbox Games and Inc.. Released on March 24th 2016 has received 318 reviews of which 301 were positive and 17 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like OTTTD.
8.7
301
17
-98%
9.99€
0.22€
7. DG2: Defense Grid 2
Similarity 55% Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a bold new look and the addition of new game modes, player-versus-player and multiplayer co-op, every play brings fun new opportunities and challenges. DG2: Defense Grid 2 is a strategy, tower defense and indie game developed by Hidden Path Entertainment and published by Hidden Path Entertainment and 505 Games. Released on September 23rd 2014 has received 3,163 reviews of which 2,723 were positive and 440 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like OTTTD.
8.3
2,723
440
-98%
12.49€
0.26€
8. Go Home Dinosaurs!
Similarity 51% Todd Rex wants steak. Todd Rex wants YOUR steak. Are you gonna let him take it? No way! Go Home, Dinosaurs!Prevent hordes of marauding Dinos from crashing your party in the world’s premier BBQ defense simulator! Unlock powerful towers that act like little weaponized puzzle pieces. Go Home Dinosaurs! is a tower defense, casual and strategy game developed and published by Fire Hose Games. Released on March 14th 2013 has received 600 reviews of which 524 were positive and 76 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for games like OTTTD.
8.2
524
76
-98%
9.75€
0.29€
9. Deathtrap
Similarity 53% 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 2,194 reviews of which 1,842 were positive and 352 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like OTTTD.
8.1
1,842
352
-98%
19.99€
0.49€
10. Popup Dungeon
Similarity 41% A tactical roguelike RPG inspired by our favorite tabletop games that lets you create any ability, item, villain, hero, and game imaginable. Popup Dungeon is a rpg, strategy and indie game developed by Triple.B.Titles and published by Humble Games. Released on August 12th 2020 has received 1,020 reviews of which 772 were positive and 248 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like OTTTD.
7.3
772
248
-98%
24.99€
0.51€
Free games like OTTTD on Steam
Check out this fantastic list of free-to-play games like OTTTD you can enjoy on Steam right now, updated on June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like OTTTD.
1. The Perfect Tower II
Similarity 45% The Perfect Tower II is a mix between an incremental and a tower defense game. Build a town, manage resources and explore a variety of mini-games and tons of upgrades. Fully automate your game and watch numbers going up! The Perfect Tower II is a strategy, idler and tower defense game developed and published by Fire Sword Studios. Released on February 26th 2021 has received 3,639 reviews of which 3,201 were positive and 438 were negative resulting in a rating of 8.5 out of 10. With 526 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like OTTTD.
8.5
3,201
438
526
players
2. Bloons TD Battles 2
Similarity 40% From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons! Bloons TD Battles 2 is a free to play, tower defense and multiplayer game developed and published by Ninja Kiwi. Released on November 30th 2021 has received 32,320 reviews of which 27,193 were positive and 5,127 were negative resulting in a rating of 8.3 out of 10. Thanks to its free to play tag and a daily player base of 477, this game has secured the #2 spot in the ranking of free games like OTTTD.
8.3
27,193
5,127
477
players
3. Zero-K
Similarity 41% 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 3,922 reviews of which 3,678 were positive and 244 were negative resulting in an impressive rating of 9.0 out of 10. The game currently holds the #3 spot among the most played free games like OTTTD.
9.0
3,678
244
93
players
4. Royal Revolt II
Similarity 42% Royal Revolt 2 is an asynchronous PvP Reverse Tower Defense game full of medieval magic and action-laden battles.Can you set up your defenses so other Kings and Queens can't crash your castle gates? We're throwing down the gauntlet. Will you pick it up? Royal Revolt II is a action rpg, tower defense and strategy game developed and published by Flaregames. Released on May 19th 2021 has received 324 reviews of which 246 were positive and 78 were negative resulting in a rating of 7.1 out of 10. The game currently holds the #4 spot among the most played free games like OTTTD.
7.1
246
78
39
players
5. Emporea: Realms of War and Magic
Similarity 42% Emporea is an oldschool fantasy strategy game, where cooperation with other players is necessary to achieve victory. Only the best alliance can win! Multiple realms available, with new ones starting every two weeks. Emporea: Realms of War and Magic is a free to play, strategy and massively multiplayer game developed and published by Pixel Federation. Released on June 08th 2016 has received 526 reviews of which 359 were positive and 167 were negative resulting in a rating of 6.6 out of 10. The game currently holds the #5 spot among the most played free games like OTTTD.
6.6
359
167
31
players
6. War of Omens Card Game
Similarity 42% War of Omens is a CCG with a unique Deckbuilder combat system and deep strategy. Set in a masterfully crafted dark fantasy world, it features fast, strategic battles with 4 distinct factions and over 20 heroes. Challenge the online ladder, conquer the story mode, or compete in a cross faction draft! War of Omens Card Game is a free to play, strategy and indie game developed and published by Fifth Column Games. Released on February 18th 2019 has received 682 reviews of which 589 were positive and 93 were negative resulting in a rating of 8.1 out of 10. The game currently holds the #6 spot among the most played free games like OTTTD.
8.1
589
93
14
players
7. Crustacean Nations
Similarity 48% 🦀Crustacean Nations🦀 is a real-time strategy game about total crab warfare. Build a sprawling sand castle and amass huge armies to dominate the beach and become the one true crustacean nation! Crustacean Nations is a strategy, casual and action rts game developed and published by Team Beans. Released on August 19th 2022 has received 460 reviews of which 427 were positive and 33 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #7 spot among the most played free games like OTTTD.
8.6
427
33
8
players
8. Crystal Clash
Similarity 43% Crystal Clash is a mix of Lane Battles and Deckbuilding - with action-packed tug-of-war strategy, just like your favorite RTS mods from back in the day! :) Play 2v2 or co-op with a friend, or pair up with new allies and enemies! Collect cards, build your decks and have fun crushing your enemies! Crystal Clash is a action rts, tower defense and casual game developed and published by Crunchy Leaf Games. Released on January 14th 2022 has received 1,322 reviews of which 1,096 were positive and 226 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #8 spot among the most played free games like OTTTD.
7.9
1,096
226
5
players
9. Clatter
Similarity 40% Create and command your own customizable squads of fighting robots in this turn-based, arena tactics game. Clatter is a strategy, indie and turn-based game developed and published by Facepunch Studios. Released on December 10th 2018 has received 1,146 reviews of which 948 were positive and 198 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #9 spot among the most played free games like OTTTD.
7.9
948
198
4
players
10. Outpost
Similarity 49% Outpost brings the perfect mix between survival and roguelite gameplay. Start the game in a randomly generated environment and try to adapt, and make it through as many nights as possible. How long can you survive? Outpost is a free to play, indie and strategy game developed and published by Open Mid Interactive. Released on May 01st 2020 has received 758 reviews of which 664 were positive and 94 were negative resulting in a rating of 8.3 out of 10. The game currently holds the #10 spot among the most played free games like OTTTD.
8.3
664
94
3
players