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Prototype Mansion - Used No Cover

Screenshots

Prototype Mansion - Used No Cover screenshot 1
Prototype Mansion - Used No Cover Trailer #1 trailerWatch trailer on Steam ↗

Prototype Mansion - Used No Cover

Jupiter Lighthouse Games · Published by Jupiter Lighthouse Games

Content notice: Graphics are retro low poly and cartoonish. There is pixel blood and zombie head popping. Do not shoot the cats. Pet them instead, either will save the game.

Mostly Positive — 71% positive (58 reviews) · 16 achievements

Last updated 27 Sept 2026

A classic 32-bit Survival-Horror found in a bargain bin. It is HARD, JANKY, and MEAN-SPIRITED. BUYER BEWARE!! ↓

DJCTQ 14Full Controller Support

£3.99

Lowest price we've ever recorded

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Price history

3 Sept 2026Lowest: £3.99 · Highest: £3.999 Oct 2026

Adventure, Indie · 2018 · More under £5 games

Explore the eerie mansion in Prototype Mansion - Used No Cover, an indie adventure that tests your skills in a harsh, retro-styled environment from Jupiter Lighthouse Games.

About this game

A classic 32-bit Survival-Horror found in a bargain bin. Disc no scratches, good condition.

Explore a butt-ugly old mansion. Eat potted plants. Solve puzzles. Meet mysterious strangers and shoot them in the face. Survive the night in this throwback to oldschool classic survival-horror.

"PROTOTYPE MANSION - USED NO COVER" is the first chapter in an original anthology of oldschool, 32-bit horror stories.

Features

  • Classic style survival-horror gameplay => tank controls optional

  • Campy humor, quality voice acting

  • 32-bit low-poly visuals, janky models

  • INVESTIGATE EVERYTHING

  • Bargain bin price ($4.99)

"truly Terrible."

  • W. Sanchez, critic

"it's A Bloody Mess."

  • People, peoplin'

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • OS *: Windows 7 or better
  • Processor: Dual-Core 2ghz
  • Memory: 4 GB RAM
  • Graphics: Intel HD Graphics 4000 series or better
  • DirectX: Version 10
  • Storage: 210 MB available space
  • Additional Notes: This game is intentionally post-processed to a very low resolution. If you set your display to 640x480 you can get this running on all contemporary potatoes.

Recommended

Recommended:
  • OS *: Windows 7 or better
  • Processor: Intel i5 or equivalent
  • Memory: 4 GB RAM
  • Graphics: Nvidia Geforce 600 series or better
  • DirectX: Version 11
  • Storage: 210 MB available space
  • Additional Notes: This game is intentionally post-processed to a very low resolution. If you set your display to 640x480 you can get this running on all contemporary potatoes.

Supported Languages

English*
*languages with full audio support

Latest news

  • AnnouncementsOfficial

    Runs great on the Steam Deck!

    We haven't officially been verified by Valve yet, but the game runs amazing on the Steam Deck. If you have one give it a try. Feels like it was made for that device. Same goes for the sequel Garden Variety Body Horror - JP. Hopefully we get our verification tag soon, but until then these posts will have to do. -a
    Read full article on Community Announcements (Ol Gimpy [adny])
  • Patch NotesOfficial

    Unity Security Update (and other issues)

    Unity released a fix for a security flaw found in nearly all version of Unity. As a result we've updated Prototype Mansion from Unity 2018 (was not supported in the security update) to Unity 2022 LTS. Not only did this update fix the security flaw it came with a few other added benefits. Unity Security Fix. Fixed crash found on 2nd floor caused by sleeping cat dumping animations into queue every frame. Fixed issue with elevator in Overtime not always working correctly Updated some AI pathing issues for Muriel Tweaked difficulty in Muriel's area with the nurses We will be releasing the security update for Garden Variety soon. Due to the game being larger, testing will take a little longer.
    Read full article on Community Announcements (admin)
  • AnnouncementsOfficial

    Episode 3: PARANORMAL PRECINCT - LAST COPY OF '99

    Hi all! After 5 years of silence, we're damn happy to announce the final entry in our survival horror trilogy... "PARANORMAL PRECINCT - LAST COPY OF '99" The game has been quite and undertaking and as such will feature two separate game modes: Main Story Campaign: A seamless continuation to both PROTOTYPE MANSION and GARDEN VARIETY BODY HORROR that sees conclusive story endings for our heroes; Cass, Hank, and Muriel... Rookie Blues Game Mode: Solve cases, kill bosses, and save the city in this fixed-camera classic survival horror roguelite. Follow a rookie officer from the first steps of their career to their final, inevitable farewell. Experience multiple campaigns (each with 5 unique casefiles and final boss!), overcome various enemies factions, and explore many locations - rich in story and secrets. Each casefile, a milestone; each challenge, a rite of passage. All leading to the ultimate achievement: securing a and retirement party. We can't wait to show you more in the coming weeks! Happy Halloween everyone. Wishlist us at the store page: https://store.steampowered.com/app/1258030/Paranormal_Precinct__Last_Copy_of_99/
    Read full article on Community Announcements (admin)
  • Patch NotesOfficial

    Last Big Update and Ep. 3 Announcement!

    Hi all, Happy Halloween! Have we got some news... Episode 3 is officially in development, more on that later though. To celebrate, we went back and did some much needed quality of life updates to both Prototype Mansion and Garden Variety Body Horror. This update brings a fix to the crash bug that so many were experiencing. Which is a huge freaking deal for us. We have been haunted by this bug for literal years. We rewrote our camera system. Overhauled every cutscene, enemy, and item with no luck. But at the end of the day… it was a cat. A simple model we used in our save system was creating a new animation clip every single frame that it wasn't on screen… and these would slowly but steadily clog up memory until the game crashed. Serves us right, honestly. Bug fixes and quality of life changes in this update: • CRASH BUG FIXED!! • "Save points" now support simple interaction • Added more checkpoints to Easy and Normal modes • Fixed a progression blocker where the player would spawn instantly dead • Doppelganger now consistently shows up (this makes the game harder!) • Volume/Brightness sliders now save This will likely be the last biggish update for Prototype Mansion as we focus our attention on Paranormal Precinct and Wreckage. Thank you for your support over the years! -JLH
    Read full article on Community Announcements (admin)
  • Patch NotesOfficial

    Critical Bug Fixes 1/6/19

    Released bug fixes. 1) fixed issue where the collider on some zombies would remain after killing thusly blocking your way 2) fixed issue where cat in office sometimes wouldn't appear if you killed the cat in the bedroom on the first floor 3) fixed various lighting/specular settings 4) fixed various pickup locations that had put them slightly out of reach 5) fixed issue where you could still activate doors in overtime that had been smashed down 6) fixed some controller issues... more details below. So for controller support issues. Due to how Unity and Steam interact there are some weird oddities with the controller that don't let Unity recognize it. What we've done is added an event to the game that monitors if the controller was attached subsequent times and try to re-hook it up. So if your game starts and the controller is not recognized, just unplug and replug it in. You should also go into the Steam Controller Settings and make sure that you have the appropriate configuration enabled for playstation/xbox controllers. Like this: https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/33102901/a6c1592944f2c0da040446cc0b3dff7c5aa8153e.png
    Read full article on Community Announcements (lordofduct)

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