MORTALITY DECOMP. KILLERS

CUPPAKILL

Released
Apr 25, 2025
Platforms
Last updated
Wishlist on SteamAdd it on the Steam store page. Opens in a new tab.

Updates & announcements

20 posts
  1. Developer post

    NEW FREE FPS OUT NOW

    MY LATEST GAME IS AVAILABLE NOW FOR FREE View game page WHAT'S IT ABOUT? At the end of Earth, Nilus, the God of Gore re-incarnate, lays waste to the last standing battalion - A corrupt oppression with ties to his past. Juggle between stolen weaponry and discard empty guns straigh

  2. Developer post

    REINCARNAGE IS COMING

    Annihilate everything. September 1st. (...and the entire base game will be free!) WHATS IT ABOUT? At the end of Earth, Nilus, the God of Gore re-incarnate, lays waste to the last standing battalion - A corrupt oppression with ties to his past. There is no reloading - Juggle betwe

  3. Developer post

    v2.2 - 1 Year Anniversary!

    Hey y'all! It's been a whole year since the release of MORTALITY DECOMP KILLERS! I didn't expect so many people to play this game at all when I was making it and the game's evolved so much thanks to your reviews, messages and support. Thanks for playing everyone! I've added 4 Mas

  4. Developer post

    V2.1.1 Back Quick-Fix

    Full Changelog: "V2.1.1 Back Quick-Fix" Bug Fixes: - Prevented walking through Doors - Blood effects no longer pass through the floor in Bonus level 1 General Tweaks & Changes: - Added freeze-frame when killing half-goons

  5. Developer post

    v2.1 - Back Update

    Greetings y'all! I've been hard at work on Bane Murrain: Episode Two , which is nearing it's final stages of development before release so keep an eye out for that! Anyway, I'd had a few fixes and bits lying around in my files, so I thought I'd drop them now in case I never added

  6. Developer post

    Merry X-Mas!!

    MERRY X-MAS Y'ALL! All my games are on sale until January 5th, if ya want too. View game page

  7. Developer post

    v2.0 - Arena Mode

    Happy holidays! Here's a big update for MORTALITY DECOMP. KILLERS for y'all. NEW ARENA MODE has been added, for a simpler and more seamless endless mode. Move through individual rooms generated from interlocking presets and see how far you can make it. NEW UNLOCKABLE LORE LOGS th

  8. Developer post

    V1.6 - Cam Swap No More

    Hey guys. You can now optionally remove the camera's anti-clip flipping, and also swap out some of the eye-fucky bright textures for grey ones. Yuour'er welcome! Full Changelog: "V1.6 - Cam Swap No More" New Shit: - Added setting to turn off Camera Auto-Switch (clipping camera mo

  9. Developer post

    v1.5.1 - Rogue Patch

    Full Changelog: "V1.5.1 - Rogue Patch" Bug Fixes: - Fixed Music turning off when dying as Clive once in 'Rogue Mode' - Fixeed Pause Menu not working after dying once in 'Rogue Mode'

  10. Developer post

    V1.5 - Rogue II

    Here ya go, Abaddon in Rogue Mode! Of course, you need to own the Abaddon DLC to play as him. Rogue Mode also now has a setup menu before playing and all the DLC maps have been added to the pile. Have fun! Full Changelog: "V1.5 - Rogue Mode II" New Shit: - New separate menu for R

  11. Developer post

    V1.4.5 - Brief Patch

    Full Changelog: "V1.4.5 - Brief Patch" Bug Fixes: - Fixed a softlock point in 'Takeover Two' - Fixed Melee-only trophy in 'Clock Out'

  12. Developer post

    SHADOW OF ABADDON - OUT NOW

    AVAILABLE NOW Here it is- the second half of the M.D.K story! The full Abaddon campaign is available now! I intend to update this further and add more content for DLC players specifically (like outfits) so have fun and stay tuned for more! As always, if you find any bugs or glitc

  13. Developer post

    V1.4.4 - Whoops

    Full Changelog: "V1.4.4 - Whoops" Bug Fixes: - Level 3 doesn't kick you back to the menu anymore and end the campaign (what the fuck man) - Reverted Bullet Collision - Moved back to a patched version of initial Unity version Last patch was a risky one and turns out it broke a bun

  14. Developer post

    V1.4.3 - Version Conversion

    Full Changelog: "V1.4.3 - Version Conversion" New Shit: - Upgraded Unity version in light of recent company stupidity - The start of levels now have bars appear to prevent backtracking and hiding at spawn - Breakable doors have a slash-line flashing on them for easier differentia

  15. Developer post

    SHADOW OF ABADDON - OUT OCTOBER 10TH

    THE OTHER SIDE OF THE COIN MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is an expansion pack that expands on the story of the base game with an entire second campaign (at the same size as the first), featuring new gameplay mechanics, locations and characters. Play as the antagoni

  16. Developer post

    v1.4.2 - Extended Fixes

    Hey y'all. Still cooking on the DLC and testing some camera shit while I chip away at Bane Murrain: Episode 2. There's more of a crossover between those things than you'd expect though! Anyway, I've decided to drop some of the smaller fixes and polishes I've made while on the DLC

  17. Developer post

    V1.4.1 - Brief Patch

    Changelog: "V1.4.1 - Brief Patch" Tweaks & Patches: - Fixed 'Ossuary Offices' spawning all the Hard Mode enemies in Normal Mode - Fixed a missing skybox in the final Wolf cutscene (that nobody noticed till now) sorry about that lmao

  18. Developer post

    v1.4 - Hard Mode & Extras

    Hey y'all! It's time for Third Person Shooter fest, so here's a small update I crammed out amidst my Bane Murrain work. The campaign has a harder new game plus playthrough mode , there's an alternate Clive skin to unlock for beating it, and I threw in some of the concept art too

  19. Developer post

    M.D.K DLC - COMING SOON

    WISHLIST THE DLC THE OTHER SIDE OF THE COIN MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is an expansion pack that expands on the story of the base game with an entire second campaign (at the same size as the first), featuring new gameplay mechanics, locations and characters. Pla

  20. Rock, Paper, Shotgun

    Mortality Decomp. Killers is a free Post Void-like that scores you on how many doors you've "killed'

    MDK was a 1997 shooter in which you played a pointy headed janitor named Kurt Hectic with a parachute suit and a gun for an arm, the best thing about it being its Giger-ish sniper mode interface . MDK is also Mortality Decomp. Killers - a sour lollipop puke hued Post Void -like w