Single-player games like The Innsmouth Case
Below are 9 single-player Steam games similar to The Innsmouth Case, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like The Innsmouth Case page.
Ranked picks
- 1
Omen Exitio: Plague
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
Investigate a paranormal disease that threatens to eradicate humanity in this unsettling Lovecraftian adventure, inspired by the choose-your-own-adventure gamebooks of the 80s and 90s. Your choices will determine the story, your character’s destiny… and the future of humanity.
- 2
Scarlet Hollow
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
Your aunt’s dead, your cousin hates you, and you’re stuck in the dead-end town of Scarlet Hollow. Choose your path through a branching narrative so dense that you'll see less than 1/5 of the game on a single playthrough. You won't be able to save everyone. Good luck, and welcome home.
- 3
The Infectious Madness of Doctor Dekker
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
YOU are a psychiatrist, trying to solve a murder whilst treating the unusual patients of the recently deceased Doctor Dekker. Type a question - patients reply in full screen video and have questions for you too but be careful what you say. Your words determine their eventual fates, and your own!
- 4
Homicipher
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
Homicipher is a language deciphering and exploration ADV based on the concept of "romance with horror men." The protagonist, who has wandered into another world, interacts with non-human beings to decipher their language while striving to escape.
- 5
Static Dread: The Lighthouse
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
Lovecraft meets Papers, Please. Play as a lighthouse keeper and guide ships safely into the harbor using your radio. Survive the presence of something impossible, and don’t let the shadows consume you!
- 6
DISCOPUP
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
DISCOPUP is a mystery game about a seal who wants to sneak inside a dogs-only party. Explore the city and meet shady characters as your search for the perfect dog costume.
- 7
Gibbous - A Cthulhu Adventure
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
Crazy cultists. Cthulhu. A talking cat. Gibbous takes you on an expansive, traditionally animated, hand-painted adventure. Play as three protagonists and explore a lushly rendered Lovecraft-inspired world, unraveling ancient conspiracies. A comedy cosmic horror adventure made in Transylvania!
- 8
The Confession
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required.
Ever wondered how much of a kinky pervert you are? Ever wanted to know what your fate entails for being such a kinky pervert? Answer a series of disgustingly hilarious, immoral questions to reveal ridiculous scenarios & unlock the answers you seek...
- 9
Plan B from Outer Space: A Bavarian Odyssey
Single-player alternative to The Innsmouth Case — playable solo, no multiplayer required. Shares Indie and Adventure with The Innsmouth Case.
Escape the grasp of the Barbvarians! Plan B from Outer Space is a stellar adventure in the style of an interactive book and takes inspiration from classic science-fiction stories and Bavarian culture. Every decision will affect the outcome of your mission; to leave this strange planet unscathed!