Single-player games like Boulette Hell
Below are 8 single-player Steam games similar to Boulette Hell, 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 Boulette Hell page.
Ranked picks
- 1

Shootvaders: The Beginning
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
The Space mission center has ordered you to fly into space and find a new planet. New planet will bring a new possibilities to humankind. The flight won't be easy! The universe has many alien groups that want to stop you.
- 2

Lux Ex - Legacy
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
Destroy bugs and glitches in your astral body to recover data from the source of the light of your soul.
- 3

Waves
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
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!
- 4

Dominus Solaris
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
In the year 2073, the Skolovan Empire attacked and subdued planet Earth. The rebels gathered technology from whatever they could to build a prototype ship, the Dominus Solaris. Now it's up to you, the ship's sole pilot, to fight and liberate the Earth from the usurpers.
- 5

Death Road
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
Death Road is a solo Top Down Shooter game. Take on the challenge of liberating the earth from a zombies and monsters infestation, using over-the-top weaponry in a world with awesomely stylized graphics. The road journey has never been so much fun!
- 6

Tring!
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
Tring! is a short score-attack game where you bounce balls off enemies and walls to gain scores. Reach the highest score you can, and try to beat and everybody else again!
- 7

SUBSØNIC
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
An audio-reactive twin-stick bullet-hell where the song is the weapon. Play hand-tuned packs, import any track, or drop in a music video and fight inside it: the song builds the level, the video plays behind the fight, and every bullet locks to the beat.
- 8

Atria Valkyrie
Single-player alternative to Boulette Hell — playable solo, no multiplayer required. Shares Action and Indie with Boulette Hell.
Operate disc hovercrafts that absorb enemy bullets to charge up your weapon. This is a vertical STG game. Correct timing of your attack and choice of bullet determines your survival or defeat.