IMM Defense
Games like IMM Defense

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actions with secrets you find without a guideor

Games like IMM Defense

A single-player sci-fi tower defense game with quick strategic weapon placement and a casual, colorful tone, lasting about 8.5 hours.

Alien Shooter TD
A gory, single-player tower defense game mixing tower placement with hands-on alien combat, with early-reviewer playtimes ranging roughly 9–16 hours.
2017-01-13
- Action
- Science fiction

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Games like IMM Defense | IndieDex

IMM Defense
Games like IMM Defense

Find the Steam hidden gems

actions with secrets you find without a guideor

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Games like IMM Defense

A single-player sci-fi tower defense game with quick strategic weapon placement and a casual, colorful tone, lasting about 8.5 hours.

Alien Shooter TD
A gory, single-player tower defense game mixing tower placement with hands-on alien combat, with early-reviewer playtimes ranging roughly 9–16 hours.
2017-01-13
- Action
- Science fiction

Strategy

Bird view / Isometric

Indie

2112TD: Tower Defense Survival

A compact single-player sci-fi tower defense game about building and upgrading defenses to hold off zombie waves in space, with a roughly three-hour campaign.

2023-01-19

Action
Warfare
Science fiction
Survival
Strategy
Bird view / Isometric
Tactical
Indie
Simulator
Real Time Strategy (RTS)

Kitchen Crisis

A single-player culinary tower-defense game where you cook for aliens using upgradable appliances and ever-changing recipes.

2024-04-02

Science fiction
Puzzle
Strategy
Indie
Simulator
Arcade

Immortal Defense

A story-driven tower defense game about sacrificing yourself to defend your home world, with punishing difficulty and an emotionally resonant narrative; reviewers' median playtime is about 7.5 hours.

2015-08-31

Action
Science fiction
Strategy
Indie
Side view

Ancient Planet Tower Defense

A single-player tower-defense strategy game about defending an ancient stronghold from alien invaders with advanced technology, casual to pick up but with deep staying power for many players.

2015-02-03

Science fiction
Strategy
Bird view / Isometric
Indie

Defense Grid: The Awakening

A single-player isometric tower defense game about placing and upgrading towers to stop alien and robot hordes, with fun but dated visuals and a core tug-of-war mechanic.

2008-12-08

Science fiction
Strategy
Bird view / Isometric
Tactical
Indie
Simulator
Real Time Strategy (RTS)

Radiant Defense

A compact single-player tower defense game about building a space fortress and upgrading weapons to survive alien waves, with a colorful tone but occasional stability issues.

2014-07-11

Science fiction
Strategy
Indie

Alien Robot Monsters

A retro-styled sci-fi tower-defense game where colonists hold off alien robot hordes with an expanding tower upgrade system, delivering lighthearted fun and a reasonable challenge over a dozen-plus hours.

2015-09-09

Action
Strategy
Indie

Artificial Defense

A single-player real-time strategy game set in virtual reality, blending orbital shooter and tower defense while you defend servers from creeps — a roughly 6–7 hour experience.

2016-06-01

Action
Strategy
Indie

Solar Defense

A military sci-fi tower defense game about repelling an alien invasion, with a moderately long single-player campaign and tactical decision-making.

2026-03-13

Gemspire: Incremental Invasion

A single-player 2D fantasy tower defense with incremental crystal-tower upgrades and an addictive endless-wave fight against alien invaders.

2025-10-31

UIFO DEFENSE HD

A compact tower defense game about using terrain and turrets to protect crystal cores from alien invaders, with well-balanced challenges and good value.

2020-01-18

Strategy
Indie

Alien Shooter TD