The Einstein Collection Lock Puzzle - Tricky padlock brain game - 3D Brain Teaser Puzzles by Professor Puzzle.

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The party stumbles upon a room full of bright, multicolored portals. When they turn around, the door they walked through is gone. They have no choice but to venture through the portals to try and find their way out. Each portal brings them to a new room that includes a control pad.

These valves can be removed and attached to different systems, but the players only have access to a limited amount of them. They must work together to navigate these chambers. They might raise the water levels to push a floating platform up high. They might drain a room of water to allow them to reach a doorway they couldn't hold their breath long enough to get to before. This is a potentially deadly maze if the party isn't cautious with what valves to turn. Dong, J., Shi, K., Zhang, Y., Tenigeer & Yao, Y. A. Mechanism analysis of ancient Chinese crossbows. Mech. Sci. 11, 437–445 (2020). The party walks into a mysterious clearing in the forest. At the outskirts of this clearing is a mysterious glowing pool of green liquid. Some of it has already been put into potion vials ready for consumption. The party has been sent here to collect an artifact, but it appears missing or impossible to reach. Yan, H. S. & Kuo, C. H. Representations and identifications of structural and motion state characteristics of mechanisms with variable topologies. Trans. Can. Soc. Mech. Eng. 30(1), 19–40 (2006). This next puzzle would fit well in an Arctic setting but could also fit in any dungeon or tomb your players are exploring. The players must get through a long tunnel, which has completely frozen solid. With their weapons and spells, they can start to chip away at it slowly, but over time it continues to freeze again, putting them at risk of getting frozen in place. As an additional threat, the tunnel is full of frozen monsters that awaken when freed from the ice.During a spelljamming adventure, the party finds a planet that is almost nothing but water, except for a large flooded structure. Venturing inside, they discover that navigating the various large chambers here is practically impossible, as different routes are engulfed with deep water. One of your party will likely spot some valves that can be turned to lower or raise the water levels of each chamber.

Hommel, R. P. China at Work: An Illustrated Record of the Primitive Industries of China’s Masses, Whose Life is Toil, and Thus an Account of Chinese Civilization (The John Day Company, 1937). You can lob an extra twist onto this puzzle by having the maze shift and change while they are navigating it. The places they went through before are now different. The solution for reaching the exit could be a variety of things. Perhaps they need to note the different stone pathways that lead to various structures within the maze. Find them all, and the path to the exit will reveal itself.Each side of the party has information that the others need. But, they need to communicate with gestures and charades if they want any chance for their friends to understand what they are trying to get across. As the party navigates a mysterious mansion, they enter a room full of clutter and strange decorations. The ceiling begins to lower slowly. The walls around them begin to move in too. The doors to the room have vanished completely. This is a timed puzzle. They need to figure out how to stop the surfaces from moving in or find a way to survive. There are plenty of solutions you could go with. There could be paintings around the room, showing people in certain positions or interacting with particular objects. This is a fun, simple puzzle you could include in any dungeon or other location where the party gets split up. The rooms that they are in are full of magic, hindering their ability to communicate with one another. They cannot speak directly, but they can still see one another. This might be through a magical mirror on one side of the room, or perhaps some of the party appear as ghostly forms around their friends. Needham, J.: Science and Civilization in China, vol. 4. Cambridge University Press, Cambridge (1965) Dungeons & Dragons has something for everyone, from those just starting to experts. You can battle monsters, plunge through dungeons or simply hang out at the local tavern. No matter what your players enjoy in a session, it's always good to have variety.