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

HIRUN
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
HIRUN is an absolute banger of cyberpunk action roguelite where you blast, dash, and drift through neon-drenched hordes. Stack insane upgrades, unlock dope characters, and slash through deadly bosses. The OVERLORD awaits you. Die, rewire, and dive right back into the grid. Can you survive the rave?
- 2

Blackfall: Cyborgs Down
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
Deploy to a war-torn sci-fi island in Blackfall: Cyborgs Down, a high-intensity third-person looter shooter. Customize 18 Valor Cyborgs across 4 classes, master 60+ weapon models, and a 67-node skill tree. Then, trigger the turn-based 6v6 Prime Battle mode to collect and upgrade heavy mechs.
- 3

Neon Armada - Solar Storm
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
A top-down arena roguelite you can learn in one wave and spend a hundred hours mastering. Waves close in from every edge; the shop between them decides what you become. 32 ships, 28 weapons, 115 mods to combine — then endless mode, where the caps come off.
- 4

Re:Rite
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
Transform from a tiny, scrappy survivor into a skyscraper-sized Kaiju, as you fight through swarms of enemies in this chaotic PvE game. Hack-and-slash through hordes of spider-bots, clear through crowds with bullet-hell ranged weapons, and even team up with up to 3 friends in online co-op.
- 5

Broken Orbits
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
Broken Orbits is a fast-paced 1–4 player co-op space-combat game. Tear through hostile fleets, loot wild weapons and prototype effects, create devastating loadout combinations, and fight through a complete three-chapter campaign against the Ancients.
- 6

PROTOCOL: VOID
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
PROTOCOL: VOID CONTRACT is a cyberpunk top-down action RPG for 1–4 players. Take on dangerous contracts, fight hostile systems, collect randomized weapons and cyberware, shape powerful builds, and upgrade your gear to survive deadlier missions.
- 7

DartPotato
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
You start as a potato. The utensils have unionized and they want you diced. DartPotato is a top-down roguelike where you dash, dodge, and dart your way through 50 cities as five different food types each with three different classes, building absurd loadouts to avoid becoming dinner.
- 8

Destropolis 2
Single-player alternative to PHOSPHOR — playable solo, no multiplayer required. Shares Action with PHOSPHOR.
Hordes of red cube enemies. Bullets, lasers and nukes. Cities to raze to the ground.