Co-op games like iAlly
Below are 8 cooperative Steam games similar to iAlly, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like iAlly page.
Ranked picks
- 1
Granny's House
Online Co-op alternative to iAlly — playable with friends. Shares Indie and Adventure with iAlly.
Summer vacations were always the same. But this time, as João travels to visit his grandmother, he realizes something is wrong. What begins as an ordinary visit soon turns into a journey of fear, mystery, and survival against the unexplainable.
- 2
DID YOU SCARED
Online Co-op alternative to iAlly — playable with friends. Shares Action with iAlly.
A horror game based on fictional stories. The player can play story mode and multiplayer as well. a physics-based prop hunt mixed with classic horror survival.
- 3
Mystery Escape
Online Co-op alternative to iAlly — playable with friends. Shares Strategy and Indie with iAlly.
Dive into an adventure, alone, with your friends or play with random people. Solve various puzzles and overcome all the traps. There are currently 5 different rooms in which you can prove yourself. More and more rooms will be added in permanent updates. I hope to see you on the other side.
- 4
Castle of Mist
Online Co-op alternative to iAlly — playable with friends. Shares Action and Strategy with iAlly.
Castle of Mist is a first-person shooter with Roguelike random elements set in a medieval-style adventure. Players control different characters, choose various items to create unique playstyles, and ultimately defeat various monsters and the dragon attacking the castle to achieve victory.
- 5
Thanatophobia
Online Co-op alternative to iAlly — playable with friends. Shares Action and Strategy with iAlly.
Thanatophobia is a survival game in a horrific atmosphere, playable solo or in cooperation with a minimum of 2 players and a maximum of 4 players. Escape unscathed, don't get caught, there won't be a second chance.
- 6
Tanto
Online Co-op alternative to iAlly — playable with friends. Shares Action and Strategy with iAlly.
Tanto is a 4v1 multiplayer horror game set inside a procedural maze. Work together to find the exit while one player hunts you as the Entity. As the match goes on, new threats, traps and mechanics turn a simple chase into escalating chaos, and even your teammates may turn against you.
- 7
The Backrooms : Last Expedition
Online Co-op alternative to iAlly — playable with friends. Shares Action and Indie with iAlly.
"The Backrooms: Last Expedition" is a cooperative horror game designed for 1 to 4 players. Its main objective is to create an enjoyable gaming experience for friends. Players will navigate through terrifying levels, filled with various entities and dangers, as they strive to escape.
- 8
They Came From Space
Online Co-op alternative to iAlly — playable with friends. Shares Action and Strategy with iAlly.
Be the First Alien Invaders on Earth to complete objectives and prepare it for FULL SCALE INVASION! They Came From Space is an open world co-op game where you can play with up to 4 players. Avoid scary humans while navigating a rural small town as you uncover the deep dark secrets of this world.