Single-player games like Protocol : Kill Switch
Below are 8 single-player Steam games similar to Protocol : Kill Switch, 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 Protocol : Kill Switch page.
Ranked picks
- 1

Compadrone: Land Wars
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
In this fast-paced roguelite arena shooter with tower-defense twists, control a drone capable of wielding multiple weapons and fight hordes of alien warbots. Collect resources and XP to unlock new weapons, towers, abilities, and drones.
- 2

Lunaris
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
Lunaris is a fast-paced sci-fi top-down roguelite shooter: survive escalating enemy waves, stack powerful passive and active abilities, craft wild build synergies, and turn the arena into a neon storm of lasers and explosions. Every run feels fresh and intense.
- 3

District Panic
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
an action-packed arcade shooter that takes you deep into the heart of a computer under siege.You're the system's last line of defense.
- 4

Hover Point
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
Hover Point is a physics-based rogue-lite bullet hell where movement is your weapon. Dodge chaotic swarms with auto-fire action, build your skill tree, and climb global leaderboards. Master the chaos solo or in co-op via mouse-only, keyboard-only, or controller-only playstyles.
- 5

Rogue Piñatas: VRmageddon
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
A multiplayer VR roguelite game, where Vampire Survivors meet Dead Rising. Your mission? Survive the party-apocalyptic world by bashing your way through swarms of invading Piñatas, where every swing could mean survival or sweet defeat!
- 6

Supre-Immune
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
Join a roguelike action where cute immune cells battle viruses. Collect data in fast-paced combat, gain weapons and abilities through evolution, or level up to grow stronger. The fun of building your own super immune cell with different combinations each run is up to you!
- 7

Shootvaders: The Beginning
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
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.
- 8

SCAD
Single-player alternative to Protocol : Kill Switch — playable solo, no multiplayer required. Shares Action and Indie with Protocol : Kill Switch.
SCAD is an action‑packed, post‑apocalyptic roguelite where you pilot a customizable hovercraft. Fight relentless zombie hordes, craft and upgrade powerful weapons, and gear up for the future expeditions.