Games like Idle Monster TD on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Idle Monster TD are available at the bottom of the page.
Filters & Lists
United Penguin Kingdom
A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.
Rusty's Retirement
A relaxing idle-farming simulator that sits at the bottom of your screen while you do other things.
Border Pioneer
As the kingdom's most promising pioneer, embark on a legendary journey to tame the frontier! Build thriving towns across various landscapes, fending off waves of diverse enemies until you establish a firm foothold and have explored everything the eye can see!
Scarlet Tower
Hunt during the day, be hunted during the NIGHT! Scarlet Tower is a gothic horror casual game with roguelike and RPG elements, like talent trees, classes, familiars and more!
Dungeon Inn
This is a cozy strategy management game where you manage an inn placed cleverly at the mouth of a dungeon. Juggle visits and business from 2 rivaling guilds, maximize profits, but keep your double-dealing a secret! Keep everyone happy and watch your inn thrive!
Kingdom Rush Frontiers - Tower Defense
Command your troops through an epic (mis)adventure as you defend exotic lands from dragons, man-eating plants, and ghastly denizens of the underworld -all with flashy new towers, levels, heroes, and more goodies to help you crush your foes in this Fantasy Action Tower Defense game!
Wall World
Explore the mysterious Wall World on your giant robospider: mine for valuable resources, upgrade your equipment to fight off hordes of monsters, and discover exotic biomes in-between attacks. Will you be able to survive and learn the secrets of the Wall World?
Dungeon Village 2
Recruit adventurers and monsters to create your own RRG-style town!
Kingdom Rush Origins - Tower Defense
Command your elven army and defend mystical lands from sea serpents, evil sorcerers, and wave after wave of gnoll tribesman, all with the help of brand-spankin’ new towers, heroes, and spells to fend off every last baddie.Most played games like Idle Monster TD on Steam
Take a look at the top games like Idle Monster TD that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Cookie Clicker
Similarity 56% An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam. Cookie Clicker is a clicker, idler and casual game developed by Orteil and DashNet and published by Playsaurus. Released on September 01st 2021 has received 78,685 reviews of which 76,069 were positive and 2,616 were negative resulting in an impressive rating of 9.5 out of 10. The game has hit the top spot as the #1 most played game like Idle Monster TD, thanks to its 10,734 peak concurrent players over the last day.
9.5
76,069
2,616
10,734
players
2. Cornerpond
Similarity 62% A chill idle-fishing desktop toy in the corner of your screen. Buy upgrades, catch rare fish, and customize your avatar at your own pace! Cornerpond is a simulation, idler and fishing game developed and published by foolsroom. Released on April 21st 2025 has received 395 reviews of which 386 were positive and 9 were negative resulting in a rating of 9.0 out of 10. While seeing 1,967 players online at once in the last 24 hours, this game is currently ranked #2 among games like Idle Monster TD based on player count.
9.0
386
9
1,967
players
3. Idling to Rule the Gods
Similarity 53% Idling to Rule the Gods is a free to play Idle-Game with a lot of content and some Minigames. Depending on your play-style, you can play it fast or slow. Either way it can be fun for hundreds of hours! Idling to Rule the Gods is a free to play, indie and simulation game developed and published by Shugasu GmbH. Released on May 27th 2016 has received 1,891 reviews of which 1,618 were positive and 273 were negative resulting in a rating of 8.2 out of 10. While seeing 1,367 players online at once in the last 24 hours, this game is currently ranked #3 among games like Idle Monster TD based on player count.
8.2
1,618
273
1,367
players
4. Idle Hero TD - Tower Defense
Similarity 84% Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing! Idle Hero TD - Tower Defense is a early access, strategy and tower defense game developed and published by Swell Games LLC. Released on May 03rd 2024 has received 608 reviews of which 500 were positive and 108 were negative resulting in a rating of 7.8 out of 10. With 900 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Idle Monster TD.
7.8
500
108
900
players
5. Mr.Mine
Similarity 55% Explore the depths of the earth and uncover hidden treasures in this addictive idle mining game. Unlock the power of your drill with hundreds of upgrades, discover mysterious relics, and unearth priceless gems. Can you master the mines and reveal their deepest secrets? Dive in and dig deep! Mr.Mine is a idler, clicker and simulation game developed and published by Playsaurus. Released on September 30th 2020 has received 16,977 reviews of which 15,607 were positive and 1,370 were negative resulting in a rating of 9.0 out of 10. With 872 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Idle Monster TD.
9.0
15,607
1,370
872
players
6. Realm Grinder
Similarity 60% Grow your realm, build alliances, and explore one of the deepest idle RPGs ever! Realm Grinder is a free to play, clicker and pixel graphics game developed by Divine Games and published by Kongregate. Released on June 15th 2017 has received 7,059 reviews of which 6,148 were positive and 911 were negative resulting in a rating of 8.5 out of 10. With 761 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Idle Monster TD.
8.5
6,148
911
761
players
7. Idle Cave Miner
Similarity 53% Idle Cave Miner is an idle game about crafting items, mining gems, and building your team of miners. Prestige, craft, and travel to other mines to increase your strength to dig deeper, and find what lurks below. Idle Cave Miner is a idler, clicker and mining game developed and published by Cold Hours. Released on December 07th 2023 has received 683 reviews of which 552 were positive and 131 were negative resulting in a rating of 7.7 out of 10. With 745 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Idle Monster TD.
7.7
552
131
745
players
8. Idle Clans
Similarity 52% Idle Clans is a multiplayer idle game that combines the classic MMORPG experience with simplified gameplay and less time commitment. Features include a player-driven economy, PvE, trading, quests, crafting and opportunities to play, socialize and collaborate with other players. Idle Clans is a massively multiplayer, idler and clicker game developed and published by Isam Games. Released on April 07th 2023 has received 1,116 reviews of which 815 were positive and 301 were negative resulting in a rating of 7.0 out of 10. With 711 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Idle Monster TD.
7.0
815
301
711
players
9. Rusty's Retirement
Similarity 58% A relaxing idle-farming simulator that sits at the bottom of your screen while you do other things. Rusty's Retirement is a farming sim, idler and automation game developed and published by Mister Morris Games. Released on April 26th 2024 has received 12,482 reviews of which 12,106 were positive and 376 were negative resulting in an impressive rating of 9.4 out of 10. With 591 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Idle Monster TD.
9.4
12,106
376
591
players
10. Nomad Idle
Similarity 60% Face waves of enemies automatically and create builds by distributing stat points, leveling up equipment, choosing passive skills, summons and more. An idle game about killing hordes of enemies, becoming stronger, and exploring an unfolding storyline. A spin-off of Nomad Survival. Nomad Idle is a idler, clicker and class-based game developed and published by The Fox Knocks. Released on April 04th 2025 has received 627 reviews of which 398 were positive and 229 were negative resulting in a rating of 6.2 out of 10. With 481 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Idle Monster TD.
6.2
398
229
481
players
Best deals on games like Idle Monster TD on Steam
Discover fantastic savings with the best discounts on a variety of games like Idle Monster TD 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 Idle Monster TD.
1. Wall World
Similarity 50% Explore the mysterious Wall World on your giant robospider: mine for valuable resources, upgrade your equipment to fight off hordes of monsters, and discover exotic biomes in-between attacks. Will you be able to survive and learn the secrets of the Wall World? Wall World is a rogue-lite, mining and pixel graphics game developed and published by Alawar. Released on April 05th 2023 has received 9,649 reviews of which 8,815 were positive and 834 were negative resulting in a rating of 8.9 out of 10. Featuring a massive 85% discount, this game currently holds the #1 spot in the best deals for games like Idle Monster TD.
8.9
8,815
834
-85%
6.67€
1.00€
2. Refactor
Similarity 53% 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. Thanks to its incredible 80% discount, this game is now the #2 best deal in games like Idle Monster TD.
8
384
64
-80%
4.99€
0.99€
3. Wall World
Similarity 50% Explore the mysterious Wall World on your giant robospider: mine for valuable resources, upgrade your equipment to fight off hordes of monsters, and discover exotic biomes in-between attacks. Will you be able to survive and learn the secrets of the Wall World? Wall World is a game developed and published by . Released on April 05th 2023 has received 9,649 reviews of which 8,815 were positive and 834 were negative resulting in a rating of 8.9 out of 10. Thanks to its incredible 85% discount, this game is now the #3 best deal in games like Idle Monster TD.
8.9
8,815
834
-85%
6.67€
1.00€
4. United Penguin Kingdom
Similarity 75% A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom. United Penguin Kingdom is a strategy, strategy, city builder, city builder, survival and survival game developed by Turquoise Revival Games and published by GrabTheGames and UpgradePoint. Released on March 09th 2024 has received 385 reviews of which 297 were positive and 88 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 70% discount, this title has earned the #4 position in the best deals for games like Idle Monster TD.
7.3
297
88
-70%
14.79€
4.43€
5. Kingdom Rush Origins - Tower Defense
Similarity 50% Command your elven army and defend mystical lands from sea serpents, evil sorcerers, and wave after wave of gnoll tribesman, all with the help of brand-spankin’ new towers, heroes, and spells to fend off every last baddie. Kingdom Rush Origins - Tower Defense is a tower defense, strategy and 2d game developed and published by Ironhide Game Studio. Released on October 17th 2018 has received 7,001 reviews of which 6,715 were positive and 286 were negative resulting in an impressive rating of 9.3 out of 10. Currently offered at a 50% discount, this title has earned the #5 position in the best deals for games like Idle Monster TD.
9.3
6,715
286
-50%
12.49€
6.24€
6. Border Pioneer
Similarity 58% As the kingdom's most promising pioneer, embark on a legendary journey to tame the frontier! Build thriving towns across various landscapes, fending off waves of diverse enemies until you establish a firm foothold and have explored everything the eye can see! Border Pioneer is a tower defense, city builder and strategy game developed by Yahzj Games and published by Yogscast Games and Gamersky Games. Released on February 06th 2025 has received 1,090 reviews of which 956 were positive and 134 were negative resulting in a rating of 8.3 out of 10. Currently offered at a 49% discount, this title has earned the #6 position in the best deals for games like Idle Monster TD.
8.3
956
134
-49%
14.71€
7.50€
7. Kingdom Rush Frontiers - Tower Defense
Similarity 51% Command your troops through an epic (mis)adventure as you defend exotic lands from dragons, man-eating plants, and ghastly denizens of the underworld -all with flashy new towers, levels, heroes, and more goodies to help you crush your foes in this Fantasy Action Tower Defense game! Kingdom Rush Frontiers - Tower Defense is a tower defense, strategy and 2d game developed and published by Ironhide Game Studio. Released on July 25th 2016 has received 9,284 reviews of which 8,989 were positive and 295 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a 45% discount, this title has earned the #7 position in the best deals for games like Idle Monster TD.
9.4
8,989
295
-45%
9.99€
5.49€
8. Dungeon Village 2
Similarity 50% Recruit adventurers and monsters to create your own RRG-style town! Dungeon Village 2 is a simulation, rpg and strategy game developed and published by Kairosoft Co. and Ltd. Released on May 14th 2023 has received 557 reviews of which 483 were positive and 74 were negative resulting in a rating of 8.1 out of 10. Currently offered at a 29% discount, this title has earned the #8 position in the best deals for games like Idle Monster TD.
8.1
483
74
-29%
7.99€
5.67€
9. Scarlet Tower
Similarity 55% Hunt during the day, be hunted during the NIGHT! Scarlet Tower is a gothic horror casual game with roguelike and RPG elements, like talent trees, classes, familiars and more! Scarlet Tower is a vampire, vampire, action roguelike, action roguelike, pixel graphics and pixel graphics game developed and published by Pyxeralia LLC. Released on March 25th 2024 has received 2,184 reviews of which 1,801 were positive and 383 were negative resulting in a rating of 7.9 out of 10. Currently offered at a 25% discount, this title has earned the #9 position in the best deals for games like Idle Monster TD.
7.9
1,801
383
-25%
3.99€
2.99€
10. Dungeon Inn
Similarity 53% This is a cozy strategy management game where you manage an inn placed cleverly at the mouth of a dungeon. Juggle visits and business from 2 rivaling guilds, maximize profits, but keep your double-dealing a secret! Keep everyone happy and watch your inn thrive! Dungeon Inn is a early access, simulation and casual game developed by Cat Society and published by Spiral Up Games. Released on November 13th 2024 has received 531 reviews of which 499 were positive and 32 were negative resulting in a rating of 8.7 out of 10. Currently offered at a 12% discount, this title has earned the #10 position in the best deals for games like Idle Monster TD.
8.7
499
32
-12%
12.79€
11.25€
Free games like Idle Monster TD on Steam
Check out this fantastic list of free-to-play games like Idle Monster TD 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 Idle Monster TD.
1. Idling to Rule the Gods
Similarity 53% Idling to Rule the Gods is a free to play Idle-Game with a lot of content and some Minigames. Depending on your play-style, you can play it fast or slow. Either way it can be fun for hundreds of hours! Idling to Rule the Gods is a free to play, indie and simulation game developed and published by Shugasu GmbH. Released on May 27th 2016 has received 1,891 reviews of which 1,618 were positive and 273 were negative resulting in a rating of 8.2 out of 10. With 1,367 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Idle Monster TD.
8.2
1,618
273
1,367
players
2. Idle Hero TD - Tower Defense
Similarity 84% Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing! Idle Hero TD - Tower Defense is a early access, strategy and tower defense game developed and published by Swell Games LLC. Released on May 03rd 2024 has received 608 reviews of which 500 were positive and 108 were negative resulting in a rating of 7.8 out of 10. Thanks to its free to play tag and a daily player base of 900, this game has secured the #2 spot in the ranking of free games like Idle Monster TD.
7.8
500
108
900
players
3. Mr.Mine
Similarity 55% Explore the depths of the earth and uncover hidden treasures in this addictive idle mining game. Unlock the power of your drill with hundreds of upgrades, discover mysterious relics, and unearth priceless gems. Can you master the mines and reveal their deepest secrets? Dive in and dig deep! Mr.Mine is a idler, clicker and simulation game developed and published by Playsaurus. Released on September 30th 2020 has received 16,977 reviews of which 15,607 were positive and 1,370 were negative resulting in a rating of 9.0 out of 10. Thanks to its free to play tag and a daily player base of 872, this game has secured the #3 spot in the ranking of free games like Idle Monster TD.
9.0
15,607
1,370
872
players
4. Realm Grinder
Similarity 60% Grow your realm, build alliances, and explore one of the deepest idle RPGs ever! Realm Grinder is a free to play, clicker and pixel graphics game developed by Divine Games and published by Kongregate. Released on June 15th 2017 has received 7,059 reviews of which 6,148 were positive and 911 were negative resulting in a rating of 8.5 out of 10. Attracting a solid base of 761 players due to its free access, this strategy game has achieved the #4 position in the best free games like Idle Monster TD.
8.5
6,148
911
761
players
5. Idle Cave Miner
Similarity 53% Idle Cave Miner is an idle game about crafting items, mining gems, and building your team of miners. Prestige, craft, and travel to other mines to increase your strength to dig deeper, and find what lurks below. Idle Cave Miner is a idler, clicker and mining game developed and published by Cold Hours. Released on December 07th 2023 has received 683 reviews of which 552 were positive and 131 were negative resulting in a rating of 7.7 out of 10. Attracting a solid base of 745 players due to its free access, this strategy game has achieved the #5 position in the best free games like Idle Monster TD.
7.7
552
131
745
players
6. Idle Clans
Similarity 52% Idle Clans is a multiplayer idle game that combines the classic MMORPG experience with simplified gameplay and less time commitment. Features include a player-driven economy, PvE, trading, quests, crafting and opportunities to play, socialize and collaborate with other players. Idle Clans is a massively multiplayer, idler and clicker game developed and published by Isam Games. Released on April 07th 2023 has received 1,116 reviews of which 815 were positive and 301 were negative resulting in a rating of 7.0 out of 10. Attracting a solid base of 711 players due to its free access, this strategy game has achieved the #6 position in the best free games like Idle Monster TD.
7.0
815
301
711
players
7. Soda Dungeon 2
Similarity 52% Everyone’s favorite laid-back dungeon crawler returns in Soda Dungeon 2. Featuring a new adventure, a whole town to upgrade, crafting, new classes, alternate dimensions, and more! It’s everything you loved about the original plus all the stuff you’ve been asking for. Soda Dungeon 2 is a free to play, rpg and idler game developed by AN Productions and Poxpower and published by Armor Games Studios. Released on July 09th 2020 has received 5,395 reviews of which 5,093 were positive and 302 were negative resulting in an impressive rating of 9.1 out of 10. Attracting a solid base of 252 players due to its free access, this strategy game has achieved the #7 position in the best free games like Idle Monster TD.
9.1
5,093
302
252
players
8. Idle Skilling
Similarity 51% Idle Skilling is the ultimate Idle Game with years of content! Meant to be played for 5-10 minutes a day, you gradually unlock new skills like mining, fishing, pet breeding, crusading, potion-making, lab-research, construction, and more! With new updates coming, you'll never run out of stuff to do! Idle Skilling is a free to play, idler and simulation game developed and published by Lavaflame2. Released on September 15th 2022 has received 2,185 reviews of which 1,561 were positive and 624 were negative resulting in a rating of 6.9 out of 10. Attracting a solid base of 235 players due to its free access, this strategy game has achieved the #8 position in the best free games like Idle Monster TD.
6.9
1,561
624
235
players
9. Idle Spiral
Similarity 54% This is a beautiful "Idle", "Incremental" game based on spirals and mathematics. Your goal is to make the spiral grow farther and farther from the origin. The game is very simple, but it is very deep and can be enjoyed for a long time! Idle Spiral is a idler, simulation and clicker game developed by Idle System, Inc. and Yayu and published by Idle System and Inc.. Released on April 30th 2022 has received 1,744 reviews of which 1,416 were positive and 328 were negative resulting in a rating of 7.8 out of 10. Attracting a solid base of 233 players due to its free access, this strategy game has achieved the #9 position in the best free games like Idle Monster TD.
7.8
1,416
328
233
players
10. Idle Pins
Similarity 52% Idle Pins is an Incremental game made by an Incremental addict for Incremental lovers. Over 250 Pins to collect and merge. Hundreds of upgrades, features and QoL. Enjoy one of the most rewarding 'grind' experience, now on Steam! Idle Pins is a free to play, idler and clicker game developed and published by Arkshija. Released on October 16th 2021 has received 501 reviews of which 315 were positive and 186 were negative resulting in a rating of 6.1 out of 10. Attracting a solid base of 177 players due to its free access, this strategy game has achieved the #10 position in the best free games like Idle Monster TD.
6.1
315
186
177
players