Single-player games like Octogeddon
Below are 10 single-player Steam games similar to Octogeddon, 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 Octogeddon page.
Ranked picks
- 1
XALADIA: Rise of the Space Pirates X2
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Strategy with Octogeddon.
Face cosmic threats in "XALADIA", the ultimate twin-stick shooter! Conquer the battlefield with stunning 3D graphics and evolving combat. Use missiles, lasers, barriers to decimate space pirates. Upgrade weapons, unleash a relentless barrage. Experience the real space warfare!
- 2
Survivor Cells
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Indie with Octogeddon.
Discover the beauty and fragility of life in Survivor Cells, a unique survival game against viruses and bacteria, which strategically combines the elements of roguelite, bullet hell and tower defense in a challenging experience. Your destiny depends on your agility and choices. How far will you get?
- 3
SHOOPER NOVA
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Strategy with Octogeddon.
Craft Your Ultimate Circular Fortress! Dive into SHOOPER NOVA, where you choose props and components to build a unique fortress. Unlock combos to shape your strategy and battle style. Become an unstoppable barrage machine and obliterate waves of enemies from all directions!
- 4
Space Raiders in Space
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Strategy with Octogeddon.
Space Raiders in Space is a wave defense roguelike mixing squad management and tower defence mechanics. Command your almost competent crew to loot weapons and supplies, build defenses, and fight their way through the Bugpocalypse.
- 5
HYPERGUN
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Indie with Octogeddon.
Fight through waves of alien interlopers and save the world as Dewey Owens in HYPERGUN, a fast-paced roguelite shooter centering around a procedural weapon of questionable effectiveness. Enter the simulation. Build the HYPERGUN!
- 6
Run Build Pew!
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Strategy with Octogeddon.
You’re being Bounty-Hunted! Run, Build your ship piece-by-piece and make it work with the parts you find, Destroy outposts and waves of fleets, and Pick your battles carefully to overcome your hunters in this Fast-Paced Top-Down Action Roguelite Shooter.
- 7
Apocalypse Party
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Strategy with Octogeddon.
Apocalypse Party is a 3D top-down action Roguelike game. In this game, you will embark on a new mission to traverse through the Middle Ages and gradually master abilities, and arm yourself to become the strongest survivor through numerous choices.
- 8
I Hate Running Backwards
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Indie with Octogeddon.
I Hate Running Backwards is a never-ending adrenaline packed shoot'em down roguelite that puts the emphasis on destruction and fighting never ending waves of enemies while time traveling through procedurally generated worlds!
- 9
Plants vs. Zombies GOTY Edition
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Strategy with Octogeddon.
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
Hardhat Wombat
Single-player alternative to Octogeddon — playable solo, no multiplayer required. Shares Action and Indie with Octogeddon.
Hardhat Wombat is a cute puzzle-platformer construction game where deftly stacking blocks of poo can make you number one at number two.