Single-player games like Atomic Picnic
Below are 14 single-player Steam games similar to Atomic Picnic, 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 Atomic Picnic page.
Ranked picks
- 1
Crab Champions
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Claw your way across exotic islands combining fluid movement with fast paced combat to become a Crab Champion in this third person roguelike shooter.
- 2
Warden's Will
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Warden’s Will is a fast-paced movement-based roguelite shooter you can enjoy solo or up to 3 friends. Pick your Warden, try out different builds, and jump into chaotic arenas filled with unpredictable robots. The game challenges you to move smart and react quickly and try new builds with every run.
- 3
Vellum
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Write on! Defend the books in Vellum, a co-op, literary roguelike! Harness class-defining colors, master an inspired spellbook, and influence the growth of your enemy! As a group or solo, you'll craft plot-twisting builds to rewrite the rules in Ink!
- 4
Risk of Rain 2
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Escape a chaotic alien planet by fighting through hordes of frenzied monsters – with your friends, or on your own. Combine loot in surprising ways and master each character until you become the havoc you feared upon your first crash landing.
- 5
Endless Alice
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Endless Alice is a third-person action-adventure game combining Roguelite elements, anime aesthetics, and endless possibilities. Choose characters with unique combat styles and embark on adventures! Play solo or with friends in cooperative challenges for up to 4 players!
- 6
Knights Within
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Knights Within is a hack&slash horde shooter with roguelite elements. Design custom loadouts, navigate procedurally generated levels and utilize random power-ups. Either solo or with friends, can you survive endless waves of enemies to ensure humanity's survival?
- 7
Necromantic
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Start out as a lowly freshman at Valorborn Academy and prove yourself to the school and other students – or don’t, and repeatedly fall to the legions of horrors that await in Necromantic. Study up to survive in this dark and dangerous fantasy Bullet Heaven ... solo or by online co-op.
- 8
Gatekeeper
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Gatekeeper is a fast-paced rogue-like. Go on a quest to chase down Chaos and reclaim the stolen Heart of Time, fighting your way through relentless enemy forces. Play solo or in 4-player co-op and become the next Gatekeeper!
- 9
Roboquest
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Roboquest is a fast FPS Roguelite in a scorched futureworld. You're a rebooted Guardian, ready to kick some metal ass! Fight with your buddy or by yourself and annihilate hordes of deadly bots in ever-changing environments.
- 10
Witchfire
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Early Access with Atomic Picnic.
Witchfire is a first-person dark fantasy RPG shooter in which you play as a wicked sinner turned witch hunter on his final mission to reach salvation.
- 11
Bullet Heaven 2
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Bullet Heaven 2 is a bullet-hell shoot-em-up inspired by games like Touhou and Jamestown. It's all about shooting every cute thing that moves, while dodging hundreds of shiny bullets per second!
- 12
Gunfire Reborn
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Gunfire Reborn is a level-based adventure game featuring FPS, Roguelite and RPG. Players can control heroes with various abilities to experience diverse Build gameplay, use various weapons to explore procedurally-generated levels. You can play the game alone, or join 4-player coop.
- 13
Vampire Survivors
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Action and Indie with Atomic Picnic.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!
- 14
DeMagnete VR
Single-player alternative to Atomic Picnic — playable solo, no multiplayer required. Shares Adventure with Atomic Picnic.
Step into a new puzzle adventure designed for virtual reality. Armed with magnetic gloves, you’ll solve unique and evolving puzzles deep within a mysterious underground cavern.