Single-player games like Gumblaster Mayhem
Below are 8 single-player Steam games similar to Gumblaster Mayhem, 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 Gumblaster Mayhem page.
Ranked picks
- 1
ZOMBILLIONAIRE
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
Incremental FPS game where Millions of Zombies came from the dead... AND THEY ARE FULL OF OIL!!!!!! Demolish Millions of Zombies. Buy Insane Weapons. and become a Zombie Oil Billionaire
- 2
Project Nebula
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
An explosive arcade arena shooter inspired by the golden age of Amiga classics. Blast through asteroid fields, destroy alien forces, upgrade your ship, and unleash devastating weapons in a modern reimagining of a timeless genre.
- 3
X Killerz
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
A fast, bloody Y2K arena war built from three connected game types: hovercraft racing, close-quarters FPS, and a fortress-assault MOBA that run back to back in a single match. Nine stages at launch. Kills are both your score and your currency. LAN, online, or bots.
- 4
BLOODCAST
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
Shoot. Dodge. Climb. Repeat. BLOODCAST is a frenetic fast-paced 2D shooter buried in TV static and carnage
- 5
God Damn The Garden
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
The FPS Adventure where you're challenged to explore God Damn's World, and ultimately become the successor of Badass Heaven.
- 6
CTRLSINK
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
A submerged post-apocalyptic retro-style FPS set in a world swallowed by the ocean after a human/AI war. Blast through flooded facilities, battle corrupted machines, explore radioactive ruins, and uncover the last buried secrets of humanity’s collapse.
- 7
Polygon Arcade
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
POLYGON ARCADE is a neon-drenched twin-stick arcade shooter where you blast, dodge, and dash across a pulsing geometric battlefield. Mid-run, warp into vertical and horizontal shoot-'em-up or platformer modes before facing down one of the relentless bosses.
- 8
ARCASCIAN
Single-player alternative to Gumblaster Mayhem — playable solo, no multiplayer required. Shares Action and Indie with Gumblaster Mayhem.
ARCASCIAN is a minimalist ASCII-rendered fantasy FPS built around fast runs, procedural dungeons, and relentless combat.