Free games like Containment Initiative 2
Below are 8 free-to-play Steam games similar to Containment Initiative 2, 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 Containment Initiative 2 page.
Ranked picks
- 1

Propagation VR
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action with Containment Initiative 2.
Combining survival horror and static wave shooting, Propagation VR will get your adrenaline pumping as you try to survive a zombie apocalypse. Armed only with your guns and your fists, fight off terrifying zombies and other multi-species mutants. Will you get out alive?
- 2

Zumbi Blocks 2 Open Alpha
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action with Containment Initiative 2.
Loot. Kill. Survive. Can you escape ? (probably not) Zumbi Blocks 2 is the official sequel to the 2013 free browser zombie game. Stuck on an island, cut off from the rest of humanity, you wake up. The secret to breaking free from this place lies asleep, underground. From the soil, zumbies emerge.
- 3

Walking Zombie 2
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action and Indie with Containment Initiative 2.
Zombie singleplayer shooter in modern polygon graphics with rich RPG elements.
- 4

Nazi Zombies
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action and Indie with Containment Initiative 2.
Nazi Zombies is a cooperative survival game where players fend off escalating waves of Nazi zombies, earning points by killing zombies and repairing barriers to buy weapons, upgrades, perks, and unlock new map areas to maximize their survival.
- 5

No More Room in Hell
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action and Indie with Containment Initiative 2.
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.
- 6

Combat Master: Season 5
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action with Containment Initiative 2.
Join fast-paced action-packed combat. Play Combat Master -- AAA experience on any hardware. Best-in-class multiplayer gunfight. Next-level extreme performance. Lightning-speed loading time and a whole lot more.
- 7

I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action and Indie with Containment Initiative 2.
A top down twin stick zombie slaying shooter that you are sure to play again and again!
- 8

Unturned
Free-to-play alternative to Containment Initiative 2 — no purchase or trial window. Shares Action and Indie with Containment Initiative 2.
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.