Single-player games like Round 99
Below are 8 single-player Steam games similar to Round 99, 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 Round 99 page.
Ranked picks
- 1
Operation Hardcore
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action and Indie with Round 99.
Operation Hardcore is an action-packed 2D side-scrolling shooter inspired by classic twitchy action games of yesteryear, but with modern touches and conveniences.
- 2
HOLY COW! Milking Simulator
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action with Round 99.
Ever tried milking yourself while avoiding lawnmowers, butcher knives and sharks at the same time? Beat hundreds of levels and thousand of enemy waves in the endless journey to fill up the milk tank!
- 3
Assault Android Cactus+
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action and Indie with Round 99.
Assault Android Cactus is an intense arcade style twin stick shooter - pick from one of nine unique synthetic heroines and blast your way through overwhelming robots hordes to save the ship from its own workforce. Supports single player and local co-op game modes.
- 4
Bleed 2
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action and Indie with Round 99.
Bleed 2 is a relentless arcade action game featuring air-dodging, bullet-reflecting, and tons of bosses. Now with randomly-generated levels and daily challenges, too!
- 5
Cuphead
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action and Indie with Round 99.
Cuphead is a classic run and gun action game heavily focused on boss battles. Inspired by cartoons of the 1930s, the visuals and audio are painstakingly created with the same techniques of the era, i.e. traditional hand drawn cel animation, watercolor backgrounds, and original jazz recordings.
- 6
Warhammer 40,000: Shootas, Blood & Teef
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action with Round 99.
From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!
- 7
Chippy
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action and Indie with Round 99.
Chip destructible bosses apart pixel-by-pixel in this twin-stick bullet-hell shooter.
- 8
The Bug Butcher
Single-player alternative to Round 99 — playable solo, no multiplayer required. Shares Action and Indie with Round 99.
A fast paced action shooter inspired by the arcade classic Super Pang! Use a wide selection of weapons and powerups to tear through increasingly challenging levels.