Steam app 2124120 · updated 25 Oct 2026, 11:58 UTC
SULFUR is a modern old-school action-adventure: Outsmart enemies, find treasure, improve weapons, harness powers. Delve deeper, find answers, make it end.
718 hourly samples, with the daily peak drawn over them. Weekends are shaded.
26 months, October 2024 to November 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
23 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
30 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 567 hourly samples from 08 Oct, which is as far back as the source keeps every hour. Weekends are shaded.
7 days as the curve, each the highest figure that day. Behind it, 151 hourly samples. Each dip is a night. Weekends are shaded.
The blood of your enemies, and visual gore.
| Language | Full audio |
|---|---|
| English | |
| Japanese | |
| French | |
| Italian | |
| German | |
| Spanish - Spain | |
| Korean | |
| Polish | |
| Portuguese - Brazil | |
| Russian | |
| Simplified Chinese | |
| Turkish | |
| Swedish |
A blank audio cell means full audio was not marked in the returned language list.
SULFUR 1.0 & Console Release
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2026 SULFUR Gameplay Trailer
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SULFUR Forever Trailer
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Quest Update OUT NOW
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Desert Update OUT NOW
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SULFUR POWER Update
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Fortress Gameplay Trailer
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QoL of Life Update Trailer
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Release Trailer
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Forest Update OUT NOW!
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Early Access Release Trailer
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SULFUR Teaser Trailer 2023
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Holiday Update!
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DEMO Summer Update - PC Gaming Show 2024
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SULFUR Gameplay Trailer 2023
Watch on Steam131 achievements in total.
50 developer announcements, Jan 2026 to Oct 2026 · times in UTC
Increased the amount of random items that can spawn at Ralphies store at any given time. Increased the chance of 50BMG and 12Ga Chamber Chisels in Ralphies store. Units can now drop food again. Fixed a level generation issue in Town. Fixed…
Patch notesGeneral Added a background to the health bar. Fixed some localization issues with Traditional Chinese. Weapons Switching to ADS on a gun straight from using melee should now feel snappier and better. Fixed an issue with Hell 'N' Back that…
Patch notesSULFUR 1.0 is OUT NOW!After two years in Early Access, SULFUR 1.0 is finally here!SULFUR 1.0 comes packed with content, including more than 60 firearms, hundreds of loot items, multiple areas, bosses, enemies, quests, cooking, weapon…
Perfect Random ABWe've officially sold over 500,000 copies of SULFUR! A huge THANK YOU to everyone who's played, supported us, and helped us get this far. We couldn't have done it without you!On October 28, SULFUR leaves Early Access with its 1.0 release on…
ettglasvattenWhat is SULFUR 1.0?SULFUR 1.0 marks the end of Early Access and the full release of the game.SULFUR already contains a huge amount of content, including more than 60 firearms, hundreds of loot items, multiple areas, bosses, enemies, quests…
PlutoThe Triple-i Initiative has announced its return on the 8th of October at 9am PT/6pm CEST, and we’re excited to share that Perfect Random will be revealing something there! The show is only back-to-back trailers of games from other studios…
PlutoFixed an issue in Castle where the level generation would create paths into nothing. Fixed a rendering issue that caused some meshes to look jagged. Fixed Lucia boss music being too loud. Fixed recipe balance changes from earlier not…
Patch notesFixed level issues in Shav’Wani Fortress. Removed Quests that have Dirk or Fathers Shirt as a requirement. Corrupted Cultists red eyes are now back.
Patch notesGeneral Grid sorting now takes oil groups into account. Grid sorting has been adjusted to have the sort order make a bit more sense. Inventory preference for top/bottom placement of new items now doesn't affect Shopkeepers (will always…
Patch notesRemoved a scroll that was included by mistake.
Patch notesFixed not losing loot on death on hard mode. Fixed some explosions breaking the game.
Patch notesGeneral Added shortcuts to Dungeon and Castle from the Church. Adjusted the Amulet dialog during the onboarding. Adjusted the iframe calculation. Corpsemaker now has less delay before being able to shoot from other animations. Bugfixes…
Patch notesFixed Scopes breaking ADS on some weapons.
Patch notesFixed a river in Caves not functioning as water. Fixed Town geometry that blocked access to an explodable room. Fixed some issues in Town. A specific Dungeon secret no longer spawns 5 chests. Adjusted the punish trigger volumes in Dungeon…
Patch notesFixed goo walls missing in Church. Fixed a door in dungeon that was lacking its animation.
Patch notesFixed the crafting UI breaking after switching level. Fixed pickup inventory size helper showing in places where it shouldn’t. Fixed Cryo snakes enchantment breaking the game. Fixed some weapons rendering incorrectly in the Weapon Racks.…
Patch notesMain UpdatesDungeon OverhauledThe Dungeon has received a much-needed aesthetic overhaul, with many more chunks and side rooms added to make your trips underground prettier, more varied and hopefully slightly less comfortable.Knockback…
ettglasvattenDeath’s Toll reload will no longer be broken by using the melee attack. Fixed issues of fog not getting reduced when using ADS on scopes. Fixed issue of fog flickering when changing weapons. Fixed issues of the player’s camera would flicker…
Patch notesFixed CYB47 not displaying its attachments properly on the weapon rack. Fixed the material of Corpsemaker (would sometimes look broken when it wasn’t). Fixed doors in the Desert that would sometimes create colliders that would block…
Patch notesFixed "Klein Bauer" missing from some loot and vendor tables. Added more spots to find the single recipe pages in.
Patch notesFix recipes for Scroll of Pollen and Scroll of Foul Fate having the wrong ingredients.
Patch notesFixed Item names not showing in the inventory for some players.
Patch notesMain UpdatesScopes Reworked & ImprovedWe have completely refactored the way scopes work. This is a double whammy since they are both much cooler now and much more performant. Since every scope has been rebuilt, there may be some incorrect…
ettglasvattenGeneral Strait Jacket no longer bugs the amulet. Fixed so that corrupt save files won’t lock the save slot menu any more, but will rather load a backup of that save slot automatically. Grenade throwing should not spam all the throwables you…
Patch notesGeneral Fixed Emperor using the wrong rocket type. Fixed a layout UI issue with the Save slot cards. Endless Banished cards should now persist through mid-game saves. Weapons Laser weapons have bullet drop again
Patch notesGeneral Enemy take damage animations now play again. Fixed a Terrorbaum crash related to grenades. Weapons New Sulfur Grenade animations. New Molotov Cocktail animations.
Patch notesGeneralBarrel Boy no longer bumps into things when doing their jump attack.Enemies in the same faction can now hit each other again.Fixed some weapons not giving achievements when sacrificed. If you have already sacrificed those weapons the…
Patch notesMajor updates:Weapon Progression System: Sacrifice rank 5 weapons to Telia for permanent availability for a cost2 new weaponsSave Slots introducedRoguelite difficulty settings tied to save slots - Hard by default.Aim assist options added…
Perfect Random ABFixed Terrorbaum crashing the game when using railguns.
Patch notesFixed Terrorbaum crashing the game. Fixed Pilk giving the wrong number of extra jumps (said 3, but only gave 1. Now it correctly gives 3).
Patch notesBugfixes Fixed Item Descriptions ending up outside the screen in some resolutions and/or UI scaling sizes. Fixed Emperor’s name not being localized. Emperor’s floating objects etc. fixed. Corrupted Archer’s hitboxes have been fixed. Fixed…
Patch notes* Disabled a specific level generation configuration in the Hedge maze that was causing infinite loading.
Patch notesGeneral Fixed an endless mode softlock due to not clearing projectiles properly on transitions. Fixed an endless mode softlock related to talking to NPCs in the level transition. Always drops organs beats never drop organs. Instant…
Patch notesBugfixesFixed crash in Emperor fight.Fixed crash related to Scroll of Water.Fixed an issue with bullet penetration that was causing crashes.Readjusted barrelboy shockwave damage rangeFixed rockets sometimes freezing in the air. This was not…
Patch notesGeneralBullet drop modifiers are now shown in multiples instead of flat percentage (4000% now reads x40).BugfixesHitbox issues are fixed! When physics objects fly super far away, the projectile system would break. Now explodings gibs are…
Patch notesInfinite level loading fixed. Projectiles going off in the wrong direction fixed. Lurks can now swim again.
Patch notesBugfixesArmor now gets damaged by explosions properly.Lasers now should be the correct colors.Removed white trail on rocketsFixed barrelboys damaging their own or other barrelboys’ armor.Fixed game breaking bug that could cause infinite…
Patch notesThank you for all the bug reports! This patch should fix the most breaking things from yesterday.A note on rocketsOur intention with the changes to how the rockets work is to make it possible to modify their behaviour in more ways and to…
Patch notesBig patch! We’ve changed many things on a fundamental level to make the game run better, smoother and… better! You’re probably going to see changes both visually and gameplay wise that may be hard to put your finger on; that is due to us…
SklettFixed a bug that sometimes caused church unlockables brought to church or bought from Arthur's shop to not be available after restarting the game.
Patch notesFixed bulk ammo box “purchase all” using the wrong price. Fixed Poltergeist wallhacking. Oily enemies take 3x damage from fire. Wet enemies take 3x damage from electricity. Careful Oil spread is now -0.7 (Was -0.6). Shellman Oil spread is…
Patch notesFixed LOD issues, the everlasting bug! Please spit three times over your left shoulder before starting the game, that way it might finally be forever fixed. Altruistic Oil spread is now -0.7 (Was -0.5). Careful Oil spread is now -0.7 (Was…
Patch notesImproved hit detection for the Katana & Wakazashi. Made the Katana standard attack animation a bit nicer. Standing in water now removes Burning and Poisoned (used to need to be submerged). Fixed gyroscoping aiming on Steam Deck. Fixed some…
Patch notesAdded Gameplay Modifiers category to Options. (Can only be changed from Main menu). Added “No ammo limit” toggle to Gameplay Modifiers. Added “Invulnerability” toggle to Gameplay Modifiers. Tactical oil reload speed is now correctly 110%…
Patch notesGeneral50 BMG Ammo box now has the base price 100. (Was 150)Bulk ammo shop should now properly update the availability states after consuming ammo.Added back Corrupted Amalgamation to shapeshifter mutation.Removed Corrupted Amalgamation…
Patch notesFixed Church Hub floor materialFixed Strait Jacket now playing sounds correctlyFixed Cavalier not being able to reload properly Maximum 9mm ammo buffed to 2500. (Was 2000) Maximum 556 ammo buffed to 1800. (Was 1500)Maximum Energy Cells…
Patch notes3 New Weapons, 2 New Enemies, 100+ Oils rebalanced, performance improvements, and a bunch more quality of life updates!Main Updates:- 3 New Guns: Chat-Pardeur 98, Songbird and Warpig. Enjoy!- 2 New Enemies: Poltergeist & Apparition. New…
Perfect Random ABSULFUR Official SoundtrackThe official SULFUR soundtrack is now available! You can purchase it today, and 100% of the sales go directly to the artists.Grab it now and support the artists who made SULFUR sound the way it does. 🌠You can also…
Perfect Random ABFixed some "behind the scenes"-objects being visible through scopes.Fixed Stifflegs shop not properly randomizing the items.
Patch notesEdit: Thanks for all the sweet comments! Oh yeah, btw - we also made a Christmas album… 🎄 but Steam approval took a few more weeks than expected, so we’re a tiny bit late. Sorry professor, earlier bus next time! Wishlist here:SULFUR…
Perfect Random ABEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| SULFUR Official Soundtrack | WindowsmacOSLinux | 26 Jan 2026 |
| We Wish You A SULFUR Christmas | WindowsmacOSLinux | 22 Jan 2026 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Sulfur.exe | windows |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | Perfect Random/Sulfur/ | *.es3 |
WinAppDataLocalLow | Perfect Random/Sulfur/ | *.sss |
It runs on public data and somebody's spare time.
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