Single-player games like Particula
Below are 18 single-player Steam games similar to Particula, 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 Particula page.
Ranked picks
- 1
Sol Survivor
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
Jump in to intense turret defense action with Sol Survivor! Build turrets to defend your colony and the innocent colonists within. Smash enemies with volleys of actively-controlled orbital support. Play with friends in co-operative and competitive multiplayer matches or test your mettle against our new Survival mode!
- 2
Sanctum
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
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.
- 3
Prime World: Defenders
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
Fight off hordes of monstrous mutants created from a strange cataclysmic event in the new tower defense game, Prime World: Defenders. Join a group of exile treasure hunters who have ventured into the capital of an ancient empire, vast with mystery and danger.
- 4
rymdkapsel
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
Build a space station. Command the tiny crew. Explore the galaxy. A meditative space strategy game.
- 5
castle idler
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Casual with Particula.
castle idler is a short, relaxing incremental tower defense game with no waves. upgrade towers, collect coins, and unlock powerful prestige upgrades to defend your castle.
- 6
PixelJunk™ Monsters Ultimate
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy with Particula.
Tikiman the Forest Defender is in trouble. Hordes of monsters are sweeping through his realm, hoping to chow down on his offspring – and it’s up to you to defend them. By placing weapon towers at strategic points around the landscape, you can destroy the invaders and save the little ones.
- 7
Fortified
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.
- 8
Vectorio
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
Build. Automate. Defend.
- 9
Plants vs. Zombies GOTY Edition
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy with Particula.
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.
- 10
Orcs Must Die!
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
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.
- 11
Dead Bits
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Indie and Casual with Particula.
Quilly was abducted by aliens, now, he has to fight for his freedom! Destroy cube aliens with guns, bats and inteligence... avoid traps and more. Dead Bits is a first-person shooter with original dubstep soundtrack for Windows and Mac.
- 12
Overcast - Walden and the Werewolf
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Indie with Particula.
A mysterious creature has destroyed a village located near Walden's cabin, killing every person residing on the premises. Now, Walden wants revenge. This is the story of an old hunter who has nothing to lose.
- 13
CPU Invaders
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Indie and Casual with Particula.
Invaders are living inside your computer. You shouldn't let that happen! Interact with your desktop while playing, watch Youtube videos, chat with your friends and more! CPU Invaders overlaps the game itself with your computer screen.
- 14
Red Risk
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
Volunteers fight in a bloody contest for freedom and money. Play as one of three volunteers armed with their favorite weapons, survive waves of enemies and bosses. Red Risk will put you into a bloody tournament, will you survive?
- 15
Mind Spheres
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Indie and Casual with Particula.
Inspired by two not so different worlds, Mind Spheres brings you an exclusive and awesome experience. A physics puzzle with minigolf + pinball unique mashup. Figure out puzzles in order to proceed to the next level.
- 16
Desktop Agents - Cov1d-999
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Strategy and Indie with Particula.
Consider wearing a mask to play. A virtual alien virus COV1D-999 uses dramatic scenes from movies and series in order to conquer your PC. Interact with your desktop while playing, watch Youtube videos, chat with your friends and more! Wash your hands after playing.
- 17
GAMECINE VR
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Casual with Particula.
GAMECINE is your new way to watch movies! Be the hero on small cinematic adventures, pick one and live it! Multiple universes and legendary challanges for all ages. Fun to play and fun to watch people playing!
- 18
C-4
Single-player alternative to Particula — playable solo, no multiplayer required. Shares Indie and Casual with Particula.
Waiting for a match? C-4. Improve your gaming skills while you wait. Mini-games used by professional players to improve the brain response. Your spare time will never be the same with C-4! Runs on top of anything. Explode your PC.