Games like Idle Monster TD on Steam

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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.

Similarity 51%
Price -50% 6.24€
Rating 9.3
Release 17 Oct 2018
Deep Space Cache Deep Space Cache is a short & simple semi-idle bullet heaven incremental asteroid miner game.

Similarity 51%
Price 0.99€
Rating 8.7
Release 15 Nov 2024
Dragon Cliff Dragon Cliff is a Semi-Idle RPG game with deep and complex itemization/skill systems to support endless character builds. Players are to collect adventurers, kill monsters, advance talent trees, enchant/reforge equipment, discover scrolls and finally assemble the most powerful adventure team!

Similarity 51%
Price 9.99€
Rating 8.7
Release 11 May 2018
Horripilant KILL YOUR GOD. BECOME WORTHY. Horripilant is a chilling idle incremental dungeon crawl through the horrors of a forgotten underworld.

Similarity 51%
Price 7.79€
Rating 8.8
Release 20 Feb 2026
Revenge of the Titans The ultimate mash-up of Real-time Strategy and Tower Defense!

Similarity 51%
Price -62% 5.65€
Rating 7.8
Release 16 Mar 2011
Go Home Dinosaurs! 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.

Similarity 51%
Price -96% 0.41€
Rating 8.2
Release 14 Mar 2013
Fieldrunners 2 Get ready to DEFEND THE WORLD! The biggest sequel in tower defense history is finally here: Fieldrunners 2 has arrived! From Subatomic Studios, creators of the award winning classic strategy game comes an all new adventure that was years in the making.

Similarity 51%
Price 9.99€
Rating 8.0
Release 10 Jan 2013
Broken Universe - Tower Defense Get ready to rethink all your defense strategies! Build barricades to stop monsters, or lure them into a maze and attack. A variety of stages that change each time depending on how you play them.

Similarity 50%
Price -50% 4.49€
Rating 8.3
Release 04 Feb 2023
Doom Sweeper DOOM SWEEPER is a 2D pixel-style game. Clean up the approaching zombie climax, and exchange it for cash, embarking on a journey to become an arms dealer in the apocalypse. Complete the game, unlock more items in the shop, and achieve various achievements to obtain different CG!

Similarity 50%
Price -60% 1.99€
Rating 7.3
Release 08 Jun 2024
Instruction Generate voltage while uncovering the mysteries of a power plant in this story-based clicker game.

Similarity 50%
Price Free to play
Rating 8.8
Release 02 Feb 2024
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...

Similarity 50%
Price -96% 0.53€
Rating 8.4
Release 27 Oct 2014
No Heroes Here No Heroes Here is a frantic co-op game for 1 to 4 players, available in local and online modes. Craft and use several items effectively whilst coordinating your ragtag band of non-heroes to defend castles and survive! ...Oh, as well as saving the Kingdom in the meantime!

Similarity 50%
Price -70% 3.74€
Rating 8.4
Release 02 Oct 2017
Scratch Inc. Build an Empire, From Scratch, in this Scratch Card Idle/Incremental game.

Similarity 50%
Price Free to play
Rating 8.6
Release 17 Sep 2025