Single-player games like Holospace
Below are 8 single-player Steam games similar to Holospace, 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 Holospace page.
Ranked picks
- 1
nanos world™
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Action with Holospace.
The next-generation open-world multiplayer sandbox. Play community-made game modes, create addons with Lua scripting, import custom assets from Unreal Engine 5, and host your own dedicated servers for hundreds of players!
- 2
beta decay
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Action and Adventure with Holospace.
beta decay is a dark, dystopian RPG where you can build spaceships, join factions, and fight for territory in a newly discovered star system. Become an engineer repairing starships, a mech pilot commanding war machines, to a syndicate leader, executing raids deep within a labyrinthic neon city.
- 3
ELEVATED
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Action and Adventure with Holospace.
ELEVATED is a multiplayer (8 vs. 1) thriller action game where eight death row inmates try to complete the given tasks to gain their freedom while being chased by the 4th horseman of the apocalypse, "The Death".
- 4
Source Code
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Action and Adventure with Holospace.
"Source Code" is a large-scale multiplayer online and LAN FPS/TPS game set in the backdrop of World War III. It features building and portal systems, a comprehensive Zombie DLC, and a wide array of firearms and equipment for competitive shooting.
- 5
Stellar Shipyard
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Adventure with Holospace.
Stellar Shipyard is a space colony sandbox where you design modular ships and stations, and automate resource production using drones and workers. Let the automated systems fly even the most improvised designs. Face rival factions and threats solo, or alongside friends as allies or rivals.
- 6
s&box
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Action with Holospace.
Our spiritual successor to Garry's Mod, this is a game creation platform built on the Source 2 engine. Play, create, and share games, explore community creations, and experience endless sandbox fun with powerful modern tools.
- 7
Guns, Blocks, and Steel
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Action with Holospace.
A tactical multiplayer FPS created by a solo developer as a passion project. Featuring a fully destructible, block-based environment. Gather resources to produce weapons, ammo, and vehicles. Play multiplayer PVP/co-op or singleplayer with bots.
- 8
Over The Top: WWI
Single-player alternative to Holospace — playable solo, no multiplayer required. Shares Action with Holospace.
Join 200-player battles in Over The Top: WWI - an intense shooter set in the gritty backdrop of World War I. Pick your class, choose from a vast arsenal, including rifles, artillery, airplanes and powerful tanks, and experience the chaos of fully destructible battlefields.