IMHO.

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. 1
    Astromine — Steam game cover

    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

    2026ActionAdventureSimulationSingle-playerSimilar games →
  2. 2
    Train Party — Steam game cover

    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.

    2026ActionSingle-playerSimilar games →
  3. 3
    ATOM RPG 2 — Steam game cover

    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.

    RPGSingle-playerSimilar games →
  4. 4
    Ultimate Multiplayer Survival Engine — Steam game cover

    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.

    ActionIndieAdventureFreeSingle-playerSimilar games →
  5. 5
    Stormforge — Steam game cover

    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!

    2026ActionStrategyIndieSingle-playerSimilar games →
  6. 6
    Technocene: Down and Out on Ganymede — Steam game cover

    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.

    ActionIndieAdventureSingle-playerSimilar games →
  7. 7
    Last Hope on Earth — Steam game cover

    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.

    2020ActionIndieAdventure8.99 USDSingle-playerSimilar games →
  8. 8
    Mr. Nomad — Steam game cover

    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.

    ActionIndieAdventureSingle-playerSimilar games →