Single-player games like Void Source
Below are 14 single-player Steam games similar to Void Source, 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 Void Source page.
Ranked picks
- 1

High Speed Cataclysm
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
High Speed Cataclysm is the most advanced and frenetic 2D action shooter where you will have to destroy thousands of enemies in order to save the galaxy.
- 2

ROBOCRACY
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
Take on the challenge and face off against a rogue AI bent on enslaving humanity! Strap on your VR headset, step into the boots of a Galactic Ranger, and tear through waves of robots with explosive blasters, devastating shotguns, and an insane arsenal — just like classic arcade shooters!
- 3

Tank Warz!
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
Tank Warz! is an arcade shooter that will keep you entertained with fast paced tank destruction, power-ups, traps, secrets, and an energetic rock soundtrack. You'll possibly enjoy hours of arcade fun!
- 4

Orbital Survivor
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
Orbital Survivor is a physics-based roguelite arcade space shooter. Forge your path to free the galaxy from the Necromancer’s hordes. All set in a synthwave fantasy universe.
- 5

XenoFeud
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
XenoFeud is an insane top-down twin-stick arcade alien shooter, where you must survive hordes of alien intruders while defending a mysterious object in space.
- 6

Alastrius
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action with Void Source.
In this explosive on-the-rails shooter pilot powerful Star-Fighters and wage a vast interstellar war. Chart your own course across a galaxy of exotic sci-fi worlds as you carve a path to the Capital. Lay waste to hordes of enemy ships and bring down ruthless bosses. You are the Republics last hope!
- 7

Skyfighter Arcade
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action with Void Source.
Skyfighter Arcade is the classic top-down shoot-em-up vertical scroller, with a twist. Outmaneuver increasingly difficult enemies and obstacles. Blast your enemies out of the sky with powerful and unique weapons. Upgrade your weapons and ship to make yourself more powerful.
- 8

Space Strider
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
Space Strider is a 2D Sidescroller Shoot 'em up with Roguelite elements, where you beat hordes of enemies and defeat unique bosses. Unlock, upgrade and level up your Spaceships to become the ultimate Space Strider!
- 9

ШП - ShP
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Indie with Void Source.
Incomprehensible interface errative puzzle game. No instructions! This product includes 3 different puzzles.
- 10

CrushBorgs
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
"Run and Gun" oldschool single-player platformer with NES aesthetics, including an authentic 8-bit chiptune.
- 11

Castle of no Escape
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
Explore the mysterious castle full of monsters and secrets in a quest to collect all the treasures (that will also protect you from the curses on your way) and crush the main boss. The game won't let you exit the castle, no matter how you try. Technically you can win, but there is no end.
- 12

SoulFrost
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Action and Indie with Void Source.
This is a short but hard minimalistic scroll shooter where you race against doing too many actions to keep more energy, without which you won't make it to the end. Lightweight narrative art-game.
- 13

W4RR-i/o-RS
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Indie with Void Source.
Semi-automatic micro-sandbox with a console interface. You decide the fates, but don't see anything actually going on. Imagine your purpose is just to simulate a human's decision making system, in a lack of information beyond the spreadsheet numbers.
- 14

ШПМЛ5 (ShPML5)
Single-player alternative to Void Source — playable solo, no multiplayer required. Shares Indie with Void Source.
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