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

Astromine
Single-player alternative to HAEX — playable solo, no multiplayer required. Shares Action and Adventure with HAEX.
Astromine is a survival mining game about scavenging fully destructible planets. Designed for 1 to 4 players. Land on planets and gather enough materials to fight off alien creatures, fight robot factions, build structures and spaceships, and conquer the solar system
- 2

Train Party
Single-player alternative to HAEX — playable solo, no multiplayer required. Shares Action with HAEX.
Two trains running side by side, both full of people with guns. Grab whatever's on the floor, shoot across the gap, climb onto the roof if you're feeling brave. The track itself is out to get you: ridges, tunnels, bridges. Co-op wave survival or PvP. Try not to fall off.
- 3

ATOM RPG 2
Single-player alternative to HAEX — playable solo, no multiplayer required.
A New Open-World Era of ATOM Begins! 1,225 km² of the Caspian Wastes! Open-world survival game with a story-rich CRPG soul, co-op or alone, vehicles, sandbox, crafting, and strange encounters.
- 4

Ultimate Multiplayer Survival Engine
Single-player alternative to HAEX — playable solo, no multiplayer required. Shares Action and Adventure with HAEX.
The only goal is survival. Explore a dangerous world, gather resources, craft equipment, build shelter, and fight to stay alive. Whether alone or with friends, every decision could mean the difference between thriving and losing everything.
- 5

Stormforge
Single-player alternative to HAEX — playable solo, no multiplayer required. Shares Action and Adventure with HAEX.
Stormforge is an open-world survival crafting game for 1 to 8 players. You are Stormforged, with the ability to brave and harness power from magical storms. Explore, fight, forage, craft, build, and defeat bosses in this epic, fantasy game. Survive the Storms and thrive!
- 6

Technocene: Down and Out on Ganymede
Single-player alternative to HAEX — playable solo, no multiplayer required. Shares Action and Adventure with HAEX.
A story-rich survival sim where every object reacts to what you do. Manipulate, combine, improvise! You escaped your family's cage into space — now broke, undocumented, and wildly unprepared to live down and out. Keep fed, keep a roof over your head, keep yourself alive — and your new friends too.
- 7

Last Hope on Earth
Single-player alternative to HAEX — playable solo, no multiplayer required. Shares Action and Adventure with HAEX.
An single/multiplayer game of survival in a desolated post-war future world. A group of clone challenges the dangers of a forbidden Earth trying to survive against monsters made of pure radiation.
- 8

Mr. Nomad
Single-player alternative to HAEX — playable solo, no multiplayer required. Shares Action and Adventure with HAEX.
Mr. Nomad is a survival base-building, tower defense game set in a post-apocalyptic world. Set a fortified base around your camper, craft, endure brutal zombie raids, hide what is precious to you in underground bunker and embark on dangerous missions in search of resources.