Screenshots
Watch trailer on Steam ↗Quartermain and the Cult of Cthulhu
ThePrinceOfMars · Published by DOSMan Games · Official site ↗
Content notice: This game contains violence and high levels of gore. Some nudity is also present in the form of pixelated breasts.
Very Positive — 94% positive (138 reviews) · 27 achievements
Last updated 3 Oct 2026
Take up arms against Cultists, Nazis, Robots, and Lovecraftian monsters in this fast-paced action adventure. It’s down to you, Aloysius Quartermain, to sneak a 12,000 year old Artefact out of Nazi Germany by emptying lead into anything that moves.
£1.50
£2.50Lowest price we've ever recorded
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Price history
Action, Adventure · 2025 · More under £5 games
Embark on a thrilling adventure as Aloysius Quartermain battles through Nazi Germany, fending off Cultists and Lovecraftian monstrosities with relentless action.
About this game
Everybody is seeking the Ostium Magicae, a magical artefact capable of transporting entire armies to any location or dimension they desire. It’s fallen into the hands of an acquaintance, and you’ll need to track her down and help her sneak the artefact out of Nazi Germany and out of evil’s hands. It’s time to gear up and show Cthulhu’s minions that it’s not the Unknown they should fear -- it’s you.
Quartermain and the Cult of Cthulhu is a fast-paced retro FPS game taking inspiration from Indiana Jones, Wolfenstein 3D, and tabletop RPGs. With a massive enemy roster, substantial arsenal, and retro soundtrack, Quartermain is a bite-sized boomer shooter primed to offer much bang for your (three) buck(s).
FEATURES
Fast-paced combat!
Secrets Galore!
Massive Levels!
Unspeakable Monsters!
Big Guns!
A Train Level!
Punch Nazis in the Face!
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 / 11
- Processor: Intel Core i7-9700K | AMD Ryzen™ 5 5600 6-Core or above
- Memory: 4 GB RAM
- Graphics: NVIDIA GTX 1050, RX 560
- DirectX: Version 12
- Storage: 500 MB available space
- Sound Card: Onboard audio
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
Quartermain Version 2.0
Hey Quartermain players!We told you a patch was coming, and it's taken a while as the engine has been going through some updates, but we've finally made it!What does this mean?Steam Achievements are now implemented and functional.Quicksaves are in, and they work!A bug with treasure collecting has been fixed.Losing weapons in level transitions is now fixed.You can now change screen resolution. To ensure that players do not lose progress, there are now TWO versions of the game available. If you do not wish to start over, you can play the Legacy version. If you wish to have achievements working, you will need to select the top option when launching the game.Massive thanks to PrinceOfMars, as well as Stringsnapper, for making this update a reality.SamDOSMan GamesRead full article on Community Announcements (Prince of Mars)AnnouncementsOfficial
New Announcements from DOSMan Games!
Here at DOSMan, we've been hard at work lately, and we've made multiple new game announcements! Check them out here, and be sure to add them to your wishlists: BIOMEAT HUSKWORLD This is the future, Meat is currency. Nobody is giving you time to think about it. QUICK, CONSUME, MAKE CONNECTIONS AND SHOOT MONSTERS. BLOODMATCH The arena beckons. Sharpen your steel. Slash, stab, and spear your way through the ranks of Rome’s toughest warriors, taking yourself from a lowly pit slave to the land's most glorified gladiator. Your audience awaits… NIGHT JACKAL: BLOOD DEBT A masked vigilante seeks revenge, unravels a conspiracy, and teeters on the edge of sanity in this retro-inspired boomer shooter. THE HENCHMEN The Henchmen is a pulp-inspired, 90s fueled top-down, action retro open-world game set in the fictional city of New Queens during 1990 and 1996. Thanks for stopping by! DOSMan GamesRead full article on Community Announcements (sam)
