Mario's Keep - NES

Mario Goes Puzzle Platformer. Can You Figure It Out?

Mario's Keep is a clever NES ROM hack that trades straightforward platforming for a puzzle-driven challenge — you'll need to figure out the sequence of rooms, rescue the princess, and find all 9 floors. Tricky jumps required, but no glitch-abusing skills needed.

• Puzzle platformer ROM hack based on a project by w7n
• 25 levels with new graphics, altered game mechanics, and different music
• Rescue the princess and find all 9 floors
• Compatible with original NES (toaster & top loader), Retron HD, Retron 1/2/3, Retro Trio, Retro Bit, and other quality hardware clones
• ⚠️ Not compatible with Mattel NES, Retron 5, or Retro Freak (Android emulators)
• Ships from the US

A unique take on the Mario formula that rewards patience and problem-solving. If you've played through the classics and want something that makes you think, Mario's Keep delivers.