Single-player games like GROSS
Below are 14 single-player Steam games similar to GROSS, 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 GROSS page.
Ranked picks
- 1
Blood Waves
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
Hardcore and bloody shooter where you will have to repel the attacks of the living dead using the destroying traps, defensive barricades and also weapon of close and long-range combat.
- 2
Ultimate Zombie Defense
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
Team up or face it alone in this top down zombie slaying defense adventure! Featuring up to 4 player online co-op, cleanse the infected wave by wave and upgrade your base with traps & defenses to build the Ultimate Zombie Defense. Can YOU stop them?
- 3
Yet Another Zombie Defense
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.
- 4
They Are Billions
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Strategy with GROSS.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
- 5
Bulletstorm: Full Clip Edition
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action with GROSS.
Step into the boots of Grayson Hunt after a crash landing on an old resort planet forces him to make a hard choice: survival or revenge. Execute masterful kills with Bulletstorm: Full Clip Edition’s unique combat system that rewards you for performing the most creative and deadly kills imaginable.
- 6
X-Morph: Defense
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.
- 7
Emberward
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Strategy with GROSS.
Build twisting mazes with tetromino blocks and deploy unique towers in this strategic roguelite tower defense adventure!
- 8
Orcs Must Die!
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
Slice them, burn them, skewer them, and launch them - no matter how you get it done, orcs must die in this fantasy action-strategy game from Robot Entertainment.
- 9
Sanctum
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
- 10
Orcs Must Die! 2
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment.
- 11
Sanctum 2
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
- 12
SENTRY
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
- 13
Plants vs. Zombies GOTY Edition
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Strategy with GROSS.
Zombies are invading your home, and the only defense is your arsenal of plants! Armed with an alien nursery-worth of zombie-zapping plants like peashooters and cherry bombs, you'll need to think fast and plant faster to stop dozens of types of zombies dead in their tracks.
- 14
Orcs Must Die! 3
Single-player alternative to GROSS — playable solo, no multiplayer required. Shares Action and Strategy with GROSS.
Slice, burn, toss, zap, grind and gib massive hordes of repugnant orcs in this long-awaited successor to the award-winning Orcs Must Die! series.