Single-player games like IMM Defense 2
Below are 13 single-player Steam games similar to IMM Defense 2, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like IMM Defense 2 page.
Ranked picks
- 1
IMM Defense
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
This is a classic tower defense game. The alien ship is ready to invade this lovely planet. We need to use various weapons to prevent them from reaching the destination.
- 2
Random Core Defense
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Strategy and Indie with IMM Defense 2.
"In 'Random Core Defense,' acquire and enhance cores using limited resources to withstand relentless enemy onslaughts. Defeat powerful bosses and test your strategy to survive until the very end!"
- 3
Elemental Defenders TD
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
A Tower Defense where the Towers are moving around the enemies. With over 200 towers and endless mode. There is almost infinite strategies.
- 4
PathSketch
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Strategy and Indie with IMM Defense 2.
PathSketch is a classic puzzle-solving game.
- 5
Roman Empire vs. Barbarians
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
Barbarians keep expanding all over the place and you’ve been summoned as the hero who’s going to stop them. You’re provided with a Roman Empire tower that comes with a powerful catapult and a team of warriors. Will that be enough to stop the barbarian invasion?
- 6
Gutfarm
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
Gutfarm is a top-down 2D pixel art game that blends farming, tower defense, and survival elements. On this alien island, you will expand and grow your farm by planting crops, unlocking genetically mutated varieties, defending against waves of monster attacks, collecting relics, and more!
- 7
Demon Castle Story
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Strategy and Indie with IMM Defense 2.
Demon Castle Building Dungeon Management Simulation
- 8
THE GAME OF LIFE 2
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with IMM Defense 2.
The official sequel to the hit board game played by 50 million fans! The Game of Life 2 adds vibrant 3D animation and brand-new choices in every turn. Customise your peg, spin the spinner and build your best life!
- 9
Survival Space: Unlimited Shooting
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Indie with IMM Defense 2.
This is an interesting shooting game. You need to use a variety of weapons to attack the enemy and survive.
- 10
Stick to the end
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
This is a well-optimized vertical plane shooting game. In this game you can use a wealth of weapons to attack enemy planes and bosses.
- 11
Vinios
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
This is a remake of the vertical shooting version of the aircraft in 2022. And this version has added many elements of color illusion.
- 12
Break Through The Illusion
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
"Break Through The Illusion" is a dungeon barrage shooting game. The protagonist Mick needs to try to pass one room after another, make full use of the specific weapons and limited bullets in his hand to kill the monsters in these rooms, in order to reach the boss room for the final battle.
- 13
Infinity War Land
Single-player alternative to IMM Defense 2 — playable solo, no multiplayer required. Shares Action and Strategy with IMM Defense 2.
"Infinity War Land" is a pixel-style Roguelite game that combines exciting shooting gameplay, strategic weapon upgrades and dungeon exploration elements.