Single-player games like ProtoCorgi
Below are 10 single-player Steam games similar to ProtoCorgi, 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 ProtoCorgi page.
Ranked picks
- 1

RATTUS
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action and Indie with ProtoCorgi.
Play as a Rattus, a psychic rat capable of summoning meteors and altering the fabric of time. He decides to fight some birds. Can you help him survive?
- 2

QP Shooting - Dangerous!!
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action and Indie with ProtoCorgi.
QP Shooting - Dangerous!! is a bullet hell type shoot’em’up starring the pudding-loving dog girl QP seen in 100% Orange Juice. Nothing can stand between QP and her pudding - not even difficulty options to reduce the experienced gamer to tears!
- 3

Neptunia Shooter
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action with ProtoCorgi.
Armed to the teeth, players begin as Neptune in an unworldly 8-bit space dimension ravaged by creatures who burst endless waves of bullets. Shoot, dodge, and defeat the boss in six unique bullet-hell worlds.
- 4

Rigid Force Alpha
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action and Indie with ProtoCorgi.
Classic shoot’em up action in modern 3D! Blast off to take down hordes of infected aliens and dreadful machines programmed on waging an intergalactic war against mankind!
- 5

Super Arcade Boy in Defender of Planet Earth
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action and Indie with ProtoCorgi.
A retro-style classic side-scrolling shoot ’em up. Fly Super Arcade Boy through 8 levels, blast enemy waves, grab power-ups, and take down bosses.
- 6

Waves
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action and Indie with ProtoCorgi.
Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!
- 7

Earthion
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action with ProtoCorgi.
Earthion is a side-scrolling space shooter developed natively for 16-bit systems. Guide space fighter pilot Azusa Takanashi in her fight to repel the alien invaders and save planet Earth.
- 8

Deathsmiles
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action and Indie with ProtoCorgi.
Deathsmiles is CAVE's bullet-hell shoot-'em-up where you take the role of one of five Angels to defend the magical land of Gilverado from an invasion by Hell itself! Eradicate this devilish assault!
- 9

Mega Man 11
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action with ProtoCorgi.
Mega Man is back! The newest entry in this iconic series blends classic, challenging 2D platforming action with a fresh new visual style. The new Double Gear system boosts Mega Man's speed and power for a new twist to the satisfying gameplay the series is known for.
- 10

G-Darius HD
Single-player alternative to ProtoCorgi — playable solo, no multiplayer required. Shares Action with ProtoCorgi.
You will see the creation of new lives... Capture enemies and fire them back at their allies as enormous beams of energy in this horizontally scrolling shooting game, featuring 5 versions of G-Darius with new features, enhancements, and Steam exclusive extras!