SteamLoved

In this online 2-player co-op puzzle adventure, you and a friend become Inkwellers and dive into Celiphia’s magical journal. Work together, communicate clearly, and solve puzzles hidden within its pages.

Save patients with your rhythm mastery! Rhythm Doctor is a rhythm game where you heal patients by defibrillating in time to their heartbeats. Learn each patient's unique heartbeat and defeat boss viruses trying to sabotage your rhythm, all set to heart-pumping, soul-soothing music.

Biped 2 is a coop action adventure game with a strong focus on moment-to-moment collaboration alone or between 2 or 4 players.

One Hand Clapping is a vocal 2D platformer. Solve puzzles, by singing or humming into your microphone, and find confidence in the power of your voice as it changes the world around you.

WASD : The Adventure of tori is an online co-op game for 2–4 players, where each player can only use their automatically assigned key (W, A, S, or D). Even a small mistake can make the team fail, so talk with your teammates and work together! You’ll learn the rest by crashing into it… a lot.

The Past Within is the new co-op experience from Rusty Lake! Play together with someone you deem trustworthy: one in The Past, the other in The Future. Observe and communicate what you see around you. Solve the puzzles and uncover Albert Vanderboom’s plan.

The sequel to the physics-based puzzle game 'Q REMASTERED,' titled 'Q2 HUMANITY,' introduces characters or 'humans' that now appear in the game. These 'humans' can jump, bounce, throw things, and sometimes even exhibit special abilities. 'Q2' can be played solo or with up to 4 players.

Ratatan is a rhythm roguelike action game that combines rhythm games and side-scrolling action, with online co-op gameplay supporting up to 4 players. An intense battle unfolds with over 100 characters fighting in a massive melee. Let's defeat the enemies together!

Catch a wave in this smooth sound-surfing platformer: Let ethereal tunes carry you fluidly through serene abstract landscapes, tune into soothing sound spheres and revel in a meditative journey of life.

Run your own 60s-inspired space-age alien airlines in this randomly-generated chaotic 1-to-4-player local and online co-op game!

Split Fiction meets Portal! Bytebond is an electrifying online & couch co-op puzzle game that challenges you to regain control over an infected CPU. Dive into the heart of a PC with your friend and become the ultimate Antivirus Special Forces duo.

Play an early version of the first level for free! Work together to solve the puzzles and escape a desert island in this multiplayer co-op adventure. Success requires more than just you and your partner thinking alike - you'll have to communicate and stay In Sink to overcome the challenges ahead.