オンラインでみんなと遊べるアドベンチャー（Mystery）ゲーム145本。Parallel Experiment、UnderMine 2、SILENT BREATHなど。
すべてのゲーム: 24
Two detectives, one deadly experiment, a race against time. Each player only has one half of the puzzle. In this 2-player co-op puzzle game you can survive the parallel experiment only by working together.
Delve into the dangerous, ever-shifting labyrinth that is the Undermine. Discover, craft, and combine hundreds of unique items. Pair them with an ever-expanding roster of distinct playable characters for a new run every time! Grab a partner and uncover UnderMine 2's secrets together in local co-op.
Unpredictable horrors lurk around every corner, forcing you to find the missing people while desperately clinging to survival. In this experience even your own mind can become your enemy. Stay vigilant and keep your voice hushed, or risk becoming another victim of the forest's darkness
Climb up from the depths of Hell. Scale various worlds solo or chained together with your friends in the 1-4 player platforming sensation.
Explore quiet liminal spaces that feel familiar, yet strangely wrong. Walk, climb, and swim through five handcrafted stages, then build worlds of your own in a powerful sandbox. Publish them through LIMSCAPERS, visit other creators’ spaces, and explore together in Multiplay Beta.
The Gold River Project™ is a camping trip gone wrong in the Pacific Northwest. Explore, craft, build, and survive in this open-world experiment that traps you and up to 4 friends in this single player or co-op survival adventure game.
Explore, mine, craft, & fight for survival in the dark depths of this solo or co-op VR action adventure.
Solo or up to 8 players. Get rid of your employer's failed experiments in abandoned underwater labs. Navigate your submarine, avoid abyssal terrors, and remove all corpses.
Film your friends doing scary things to become SpöökTube famous! (strongly advised to not go alone)
A supernatural game infused with Chinese-style elements drawn from folklore. This game offers online gameplay for teams of up to 4 players. In a world ravaged by warlords and monsters, you will assume the role of a Taoist, wielding your skills to unveil truths hidden for millennia.
Discover a welcoming world in Palia, a free-to-play fantasy life sim adventure where you can craft, explore, and create the life and home of your dreams. With nearly endless ways to make Palia your home, you’ll find relaxation and joy in every corner of this vibrant, heartwarming world.
Journey to Incrementalia is an active incremental auto-battler about a necromancer on a short quest. Cast diabolical spells, summon an army and open the gates of hell on your quest to break down 99 walls and reach the lost city of Incrementalia.
Share the same body with a friend in Split Brain. One of you controls, the other one sees, but the decisions are made together! Face the illusion and uncover the truth to find your way out of Hexarture.
Your goal is simple, spot anomalies to escape. Play alone or together with up to 8 players in online co-op. Make the right decisions to advance to the next level, or risk being reset to the beginning!
A handpainted cozy hidden object adventure. Explore a surreal world. Collect items for its quirky inhabitants. Fix damaged paintings and solve casual puzzles. Help a lost skeleton painter find his way home. This game is short but 100% FREE (no ads, no IAP).
Demonologist is a Co-Op horror game that can be played with at least 1 and up to 4 players. Your goal is to identify the type of evil spirit in cursed places and exorcise it using your equipment, either alone or with your team.
A Day Out is a monster-hunting and case-solving co-op horror adventure. Capture monsters and discover a new supernatural world with your friends!
Rabbit Hole is a fast paced, tough-as-nails 2D RogueLike-Shooter, made with love for the genre. You are Disc, someone who was suddenly brought to the Rabbit Hole. Collect guns, fight foes and meet strange new characters on your descent to the bottom, all in an attempt to find your heart again.
Partner up with your friend online and set sail for an unforgettable puzzle adventure in this bite-sized standalone We Were Here experience. Work together to overcome brain-teasing challenges and make fun memories, using your best communication, teamwork and trust skills.
Experience a fresh take on the classic crime-solving board game. Step into new mysteries and use your skills of deduction to find out whodunit, with what weapon and where.
'Escape Memoirs: Questionable Side Stories' is a humorous co-operative escape room game where you are a henchman who has to make his way through variety of puzzles to make it to a job interview on time. Can you solve all of the puzzles that stand in the way of your employment?
Unravel the mystery of a cryptic box in this 2-player co-op puzzle game. Join forces as two detectives, solve cooperative puzzles, communicate effectively, crack the codes and outsmart the killer.
In solo or co-op, experience Reign of Sand, the ultimate version of Atlas Fallen. Ride the sands of a timeless land and defeat legendary monsters in spectacular Action-RPG combat using devastating powers.
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.