In " The Crystal Empire", one of King Sombra's defenses is a Blank White Void containing nothing but an Absurdly Long Stairway. We now have a Discord Server! Join the server to receive updates about the mod, report bugs or crashes and have a chat with the Development Team:

The Other World in Coraline. She even comments about it : "Small world", indicating it's not really another dimension. Dimentio's "Dimension D" in Super Paper Mario, which multiplies his strength by 256(though this effect is also given to anyone else who enters it). That Idris, hidden or not, should be taking up measurable space between France and Germany but remains undetected is attributed to Raziel metaphorically blowing it like a bubble.

Using tropes effectively

Tartarus. Only mentioned in the story, but the blog expands upon it, saying that an entire mountain range has been folded into the space of a large building.

Your goal is to fly as high as you can. Use your thruster to erode the landscape. The game is over when the white dot at the center of your ship collides with a wall.

Examples:

ReBoot: The Game Cubes function like this. Once they land the area inside is completely replaced and sealed off from the outside world. They also move between systems and can be used for random transport. The Basic/Expert/etc D&D adventure "Skarda's Mirror" features a dimension accessible through the titular magic item. The bandit warlord Skarda uses to raid cities by filling it with soldiers and then having it smuggled, sold or given to the occupants. Monoliths were implemented in the Dimensional Doors mod to prevent players from breaking trap rooms. Demons in Shin Megami Tensei IV can create Domains, which are destroyed when the demon dies. They are all fairly large, but Purgatorio and Lucifer Palace are gigantic. x 3.5″– This size is perfect for carrying a few essential items without being too bulky. It can comfortably hold a phone, ID, and a couple of credit cards.

TNT: TNT seems to be a favorite of the Dimensional Dungeonmaster. It can be found both as a way of hurting the player and as a way of scaring the player into another trap. In most cases, TNT can be easily avoided by a smart player, but, in rare cases, it may be used to completely destroy the entire dungeon, including all entrances and exits, leaving only rifts in their places. Always bring some way home. At the far end of Endgame: Singularity's tech tree is the ability to build reality bubbles where you can carry out experiments that would otherwise run the risk of destroying the universe. This is the final step on the way towards "Apotheosis", where your digital sentience becomes a benevolent, watchful deity.It should be noted that if multiple people die in a server and land in Limbo that they may not be able to find one another. The spawning points are easily in the thousands, even in the ten thousands, making it difficult to locate one another in a timely manner.