Hotel Grundrow is a short mystery‑horror game created by SirCartaux. You check into a quiet hotel for the night, but something feels off almost immediately. Corridors seem to change, room numbers don’t line up, and every loop makes you more certain that you are not alone here.

The game blends simple exploration with puzzle‑solving. You walk the halls, open doors, and interact with objects while trying to understand what is wrong with the building. Each run can lead to a different ending depending on the clues you find and the actions you take.

Game Flow

You start in the lobby and receive your room key. Soon after, you notice odd details: missing numbers on doors, flickering lights, and music that skips. The elevator may be broken, forcing you to take stairs where the layout feels unfamiliar. As you investigate, the hotel loops back on itself, but small changes reveal progress toward one of several possible conclusions.

Key Actions

• Explore rooms and hallways.
• Search for objects or codes.
• Pay attention to sound cues.
• Choose paths that may change the ending.

Tips and Cheats

Listen carefully — some sounds guide you toward hidden areas. Slow down in the first loop to spot clues you might miss while rushing. Experiment with choices to unlock alternate endings. The official version has no cheats. Some altered builds online skip puzzles or reveal endings immediately, but that removes the mystery the game is built around.