Free games like Strain Tactics
Below are 8 free-to-play Steam games similar to Strain Tactics, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Strain Tactics page.
Ranked picks
- 1
SAS: Zombie Assault 4
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action and RPG with Strain Tactics.
Purge the undead! Intense action-shooter with deep rpg elements, including upgradeable guns and armor, unique class skills, and class special abilities. Entire game can be played single player or as a 4-player online co-op game, including PvP events like Last Man Standing.
- 2
Alien Swarm
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action with Strain Tactics.
Co-operative multiplayer game and complete code base available for free.
- 3
Codename CURE
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action with Strain Tactics.
Codename CURE is a first person, co-operative zombie game with support for up to five players, providing dynamic, fast-paced zombie fragging with both objective, and survival-based missions.
- 4
Intravenous 2: Mercenarism
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action and Strategy with Strain Tactics.
Playing as Gideon, a cold-hearted mercenary willing to kill for money without any moral principles, you'll have tactical freedom with a wide variety of weapons and special gadgets to complete your mission in the prologue of Intravenous 2.
- 5
Walking Zombie 2
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action and Indie with Strain Tactics.
Zombie singleplayer shooter in modern polygon graphics with rich RPG elements.
- 6
Unturned
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action and Indie with Strain Tactics.
You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.
- 7
No More Room in Hell
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action and Indie with Strain Tactics.
The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare.
- 8
Alien Swarm: Reactive Drop
Free-to-play alternative to Strain Tactics — no purchase or trial window. Shares Action with Strain Tactics.
Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.