Single-player games like Space Grunts
Below are 21 single-player Steam games similar to Space Grunts, 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 Space Grunts page.
Ranked picks
- 1

Steam Marines
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Strategy and Indie with Space Grunts.
Steam Marines is a squad based Roguelike set on a steampunk spaceship. It features tactical play focused on positioning and careful use of resources. Built to keep you on your toes as you progress through the decks of your besieged ship while clearing enemies and trying to reach each level's elevator.
- 2

Tharsis
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Strategy and Indie with Space Grunts.
Succeeding in Tharsis requires you to make the best of what you have, even if it happens to be a pair of snake eyes. Certain factors may be outside of your control, but that doesn’t mean they can’t be overcome. Tharsis is not a game about facing the odds. It’s a game about changing them.
- 3

Trials of Fire
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Strategy and Indie with Space Grunts.
A Tactical, Deck-Building Roguelite. Choose 3 Heroes and adventure into a post-Cataclysmic wasteland. Engage enemies in a unique meld of card-play and tactical, positional combat. Level up and scavenge what you can to customise your decks and build a party to take on any challenge!
- 4

Crown Trick
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Strategy and Indie with Space Grunts.
Enter a labyrinth that moves as you move, where mastering the elements is key to defeating enemies and uncovering the mysteries of this underground world. With a new experience awaiting every time you enter the dungeon, let the power bestowed by the crown guide you in this challenging adventure!
- 5

Templar Battleforce
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Strategy with Space Grunts.
An addictive mix of strategic combat and army building, with the precision of an RPG. Design your squad members' exact build of equipment and talents to create unique fireteam combinations. Step into the pilot suit of a Leviathan mech, lead the Templar Knights in turn-based tactical warfare.
- 6

WazHack
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Strategy with Space Grunts.
Time moves forward only when you do in the dungeons of WazHack. Think your way out of problems instead of just spamming 'attack' and 'drink healing potion'.
- 7

Heroes of Steel RPG
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Strategy and Indie with Space Grunts.
Heroes of Steel is a tactical RPG set in a grim post-apocalyptic fantasy world. Coordinate your party of four heroes in turn-based combat and navigate a engaging world and story.
- 8

Heat Signature
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Strategy with Space Grunts.
Heat Signature is a game from the developers of Gunpoint where you break into spaceships, make terrible mistakes, and think of clever ways out of them. You take a mission, fly to the target ship, sneak inside, and make clever use of your gadgets to distract, ambush and take out the crew.
- 9

The Binding of Isaac
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Indie with Space Grunts.
Now 20% More Evil with the Free Halloween update!
- 10

Rogue Legacy
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Indie with Space Grunts.
Rogue Legacy is a genealogical rogue-"LITE" where anyone can be a hero. Each time you die, your child will succeed you. Every child is unique. One child might be colorblind, another might be a dwarf with vertigo. But that's OK, because no one is perfect, and you don't have to be to succeed.
- 11

Nuclear Throne
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Indie with Space Grunts.
Nuclear Throne is a post-apocalyptic roguelike-like top-down shooter. Not 'the final hope of humanity' post-apocalyptic, but 'humanity is extinct and mutants and monsters now roam the world' post-apocalyptic. Can you reach the Nuclear Throne?
- 12

Space Hulk (Classic)
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Strategy and Indie with Space Grunts.
The legendary Space Hulk returns in this epic turn based strategy game. Set in the Warhammer 40,000 universe, an intriguing story of legendary battles and heroic actions unfolds.
- 13

Space Hulk: Tactics (Classic)
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Strategy with Space Grunts.
Space Hulk: Tactics is a faithful adaptation of the board game Space Hulk, set in the Warhammer 40,000 universe, bringing a unique twist to the cult classic formula. Engage in bloody battles as either a squad of Terminator Space Marines or the deadly alien Genestealers.
- 14

Gunslugs 2
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Indie with Space Grunts.
The Black Duck Army is back—bigger, badder, and armed with alien tech! In Gunslugs 2, chaos reigns as you blast through tanks, choppers, giant robots, and hordes of relentless minions. This action-packed, over-the-top run-and-gun adventure is a wild tribute to classic 80s and 90s action movies.
- 15

Heroes of Loot
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and RPG with Space Grunts.
A brutal mix between dungeon-crawler and shoot-em up. The dungeon will learn from you and become more dangerous every time you play!
- 16

Gunslugs
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Indie with Space Grunts.
Lock and load for chaotic, fast-paced action in Gunslugs! Battle the evil Black Duck Army across wild, procedurally generated levels packed with explosions, jetpacks, chicken guns, and rogue-like permadeath. Unlock heroes, conquer bizarre worlds, and fight your way to the gates of Hell!
- 17

Heroes of Loot 2
Single-player alternative to Space Grunts — playable solo, no multiplayer required.
Control multiple heroes at once in this dungeon-crawling action adventure RPG, a mix of classic 80's Gauntlet-action and quests.
- 18

Ashworld
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action with Space Grunts.
Fight, scavenge, and survive in Ashworld, a post-apocalyptic open world filled with danger. Explore the desolate Ragelands, battle ruthless Ragers, and fend off night-stalking Skellies. Drive, craft, and strategize to endure this unforgiving wasteland where every resource matters.
- 19

Meganoid
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action with Space Grunts.
Meganoid is a brutal, fast-paced platformer where every descent into its ever-shifting spaceship is a new challenge. Navigate deadly traps, outsmart security drones, and discover powerful upgrades to reshape how you play. Will you rush to survive, or risk it all to uncover its deepest secrets?
- 20

Gunslugs : Rogue Tactics
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Action and Strategy with Space Grunts.
Grab your bandana and get ready for Gunslugs : Rogue Tactics! Sneak, shoot, and explode your way through ever-changing enemy strongholds in this rogue-lite stealth-action mashup. Go full-on Commando or channel your inner Snake—just make it out alive. No mission ever plays the same twice!
- 21

Space Grunts 2
Single-player alternative to Space Grunts — playable solo, no multiplayer required. Shares Indie with Space Grunts.
Space Grunts 2 combines some of the fastest turn-based gameplay with card-battling mechanics in a 1950's sci-fi roguelike setting.