PHOSPHOR is listed on Steam as released October 27, 2026 at $6.79, developed by Manawave and tagged Action.
VERIFIED Source: Steam store page (appid 4963530), checked 2026-10-28
News · phosphor · 2026-10-28
PHOSPHOR: Retro Cyberpunk Roguelike Price, Release Date and Co-op (Oct 2026)
PHOSPHOR is a $6.79 retro cyberpunk roguelike platformer with 450+ weapons, two-player co-op and PVP, out Oct 27, 2026 on Steam.
Status is labeled honestly; nothing here is copied from other sites.
Direct answer
Facts below are verified against the sources listed; nothing here is copied from other sites.
Baseline date: 2026-10-28. Always confirm in-game for anything time-sensitive.
Key facts
What we checked
Each fact lists the source that supports it.
You are a reclaimed husk sent down into the Underfab, a dead industrial deep lit only by the phosphor glow of failing machines, and each run takes you further than the last.
VERIFIED Source: Steam store page (appid 4963530), checked 2026-10-28
Loot is drawn from a pool of 450+ weapons and upgrades across six rarities, and dying keeps the cores you banked so you can unlock new operatives and drop deeper.
VERIFIED Source: Steam store page (appid 4963530), checked 2026-10-28
FAQ
Frequently asked questions
How much is PHOSPHOR?
It is $6.79 on Steam. It released on October 27, 2026 and is developed by Manawave.
Does PHOSPHOR have co-op?
Yes. There is a full two-player online co-op campaign set in one shared, seed-identical world, with 12 support weapons that only exist in co-op.
Does PHOSPHOR have PVP?
Yes. The versus terminal offers LAST LIGHT, ARSENAL, DUEL, CROWN HOLD and THE GAUNTLET, with public matchmaking through Steam and a ranked Elo ladder.
What do you keep when you die in PHOSPHOR?
The cores you banked. Death ends the run, but banked cores let you unlock new operatives and drop deeper on the next descent.
Details
The full picture
Written from verified facts; labels mark how strong each statement's evidence is.
What PHOSPHOR is
It is a side-scrolling roguelike platformer about descending through an infested industrial facility, blasting hordes and killing giant bosses on the way down.
Every descent is generated fresh, so runs are about scavenging weapons off a facility that has not finished dying and assembling a build that survives one more biome.
Progression between runs is banking: the cores you earn carry over, new operatives unlock, and the drop goes deeper.
Weapons, elemental reactions and co-op
Every weapon has its own trick: shots that pierce, chain, ricochet, charge up, steal health, execute weakened enemies or hunt targets on their own.
Fire, toxin, shock and ice react when a second element lands on a target already carrying one, producing Thermal Shatter, Superconduct, Combustion or Corrosion, and completed synergy sets change how you play.
The two-player co-op campaign runs on one shared, seed-identical world where you vote on the path, trade guns off the floor and pull each other back from bleedout, with 12 co-op-only support weapons.
The versus terminal holds five modes: LAST LIGHT, a one-hit instagib in a shrinking arena; ARSENAL, a 12-gun ladder; DUEL, a mirrored best-of-5; CROWN HOLD, where position beats aim; and THE GAUNTLET, a race through identical mirrored runs, with matchmade fights feeding a ranked Elo ladder.
Who it suits, and what it is like
The one comparison the store page makes is a player quote it runs at the top: "It's like Metal Slug meets Oppenheimer...it's good", which frames it as a side-scrolling shooter crossed with something heavier (BOUNDED: official Steam description, checked 2026-10-28).
It is built for repeat runs rather than a single authored campaign: every descent is a brand-new world and what survives death is the cores you banked (BOUNDED: official Steam description, checked 2026-10-28).
It is not solo-only. A pair gets a full co-op campaign plus a PVP suite, so the game is pitched at players who want a run to share as well as a run to grind (BOUNDED: official Steam description, checked 2026-10-28).
Coverage & items to verify
What you can use right now, and what must be re-checked before publishing or by the next update.
| Field | Ready now | To verify |
|---|---|---|
| Facts & sources | 3 verified fact(s), each with its source. | Re-check with the next data pull. |
| Update cadence | Baseline 2026-10-28. | Codes/news re-checked every 3–7 days, daily around events. |
Evidence boundary
Sources behind this page
store.steampowered.com/app/4963530
Opened and used as the reference for the facts above.
Open source ↗Labels: VERIFIED official source · BOUNDED attributable secondary source · COMMUNITY player report pending verification. Re-check time-sensitive data in-game.
Last checked: 2026-10-28Related
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