Single-player games like Heat Guardian
Below are 11 single-player Steam games similar to Heat Guardian, 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 Heat Guardian page.
Ranked picks
- 1

Near Death
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
Stranded at an abandoned Antarctic research base with no hope of rescue, you must battle a deadly blizzard in a desperate fight to find your way home.
- 2

Blackout Z: Slaughterhouse Edition
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
Blackout Z' is a super fast top-down view shooter where you face ZOMBIES, SAWS and the DARK. Do you have what it takes to have what it takes to survive the zombie apocalypse with only your gun and an old flashlight?
- 3

Invasion 2037
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
Become a survival scientist in a savage post-apocalyptic world where aliens have the control of the world and find a cure, manage your shelter and fight to survive
- 4

Heavy Bullets
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
Heavy Bullets is a randomized FPS dungeon crawler where players make their way through a colorful maze, while protecting themselves from aggressive creatures and malfunctioning security devices. The goal lies at the end of the 8th level, where they must reset the security mainframe to restore order and reap the rewards.
- 5

Hatred
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
Hatred is a violent twin-stick shooter, in which you take the role of The Antagonist fighting against all of humanity.
- 6

Blacksea Odyssey
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
Enter the Blacksea Odyssey, a violent top-down rogue-lite space shoot ‘em up RPG brimming with colossal creatures and runic technologies. Explore dangerous, interstellar spacescapes as you hunt enormous space-behemoths with a harpoon and rune-infused spears.
- 7

ANNIE:Last Hope
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
“ANNIE:Last Hope” is a HD Voxel top-down shooting game. The story began in 1990s. There was an outbreak of an unknown creature invasion and a couple got separated when escaping. Annie went on her difficult journey in search of her fiance.
- 8

Daymare: 1998
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action and Indie with Heat Guardian.
DAYMARE: 1998 is a third-person survival horror game that recreates the mood of iconic titles from the '90s, with a fresh storyline. An incident that turns a small town into a deadly zone, three characters to play with and little time to find the truth, before its mutated citizens abruptly end your mission.
- 9

S.T.A.L.K.E.R.: Shadow of Chernobyl
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Action with Heat Guardian.
S.T.A.L.K.E.R.: Shadow of Chernobyl tells a story about survival in the Zone – a very dangerous place, where you fear not only the radiation, anomalies and deadly creatures, but other S.T.A.L.K.E.R.s, who have their own goals and wishes.
- 10

LYSA HORA: The Haunted Hill
Single-player alternative to Heat Guardian — playable solo, no multiplayer required.
A dark sci-fi horror where ancient rituals intertwine with secret Soviet experiments. Explore atmospheric tunnels, hidden laboratories, and abandoned shrines inspired by real locations—and survive by solving intricate, mind-bending puzzles.
- 11

Mouse Hero
Single-player alternative to Heat Guardian — playable solo, no multiplayer required. Shares Indie with Heat Guardian.
Simple and meditative game, use only mouse! The target of the game is simple, without touching obstacles to get to the exit. As hundred levels with increasing difficulty.