Single-player games like Phasmonauts
Below are 8 single-player Steam games similar to Phasmonauts, 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 Phasmonauts page.
Ranked picks
- 1

FORKLIFT FLOWERPOT: Botanical Investigator
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Action and Indie with Phasmonauts.
An exploration game about knowledge and discovery. Change the seasons, investigate plants, and discover secrets about the world to stop an ecological disaster.
- 2

Animosity
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Action and Indie with Phasmonauts.
Through claws and bullets, Red must save his friends from the angry ape menace. Procedural levels create a new experience with every play. Companion AI gives you the backup you need. Coop, Deathmatch, and Speedrun for up to 4 player split screen. Xbox controllers recommended.
- 3

Breach Signal
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Action and Indie with Phasmonauts.
Breach Signal is a 1-6 player co-op cosmic horror game. As a recruit of the FNA, lead expeditions into strange places and investigate mysterious anomalies that threaten our reality.
- 4

HAUNTMATES
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Action and Indie with Phasmonauts.
Co-op horror investigation game across multiple maps. Enter procedurally generated environments, use your equipment to gather clues, and identify the entity. Watch your back, because monsters are hunting you down.
- 5

Space Scavenger 2
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Action and Indie with Phasmonauts.
A fast-paced, top-down action roguelite about building outlandish modular spaceships and discovering broken synergies. Scavenge resources, craft absurd builds, and hone your abilities in a paradoxical time loop.
- 6

Enigma of Fear
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Action and Indie with Phasmonauts.
Become Mia, a paranormal detective searching for her missing father inside the Perimeter - a place that doesn't exist. Investigate clues like a real detective and unravel the mysteries behind the Enigma of Fear, defeating the terrible monsters who'll try to stop you.
- 7

Phasmophobia
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Action and Indie with Phasmonauts.
Phasmophobia is a 4 player online co-op psychological horror. Paranormal activity is on the rise and it’s up to you and your team to use all the ghost-hunting equipment at your disposal in order to gather as much evidence as you can.
- 8

The Painscreek Killings
Single-player alternative to Phasmonauts — playable solo, no multiplayer required. Shares Indie and Adventure with Phasmonauts.
Investigate an infamous cold case in the eerie, abandoned town of Painscreek. Search for evidence, connect the dots and uncover who killed Vivian Roberts. Can you expose the truth behind this town’s dark secrets?