Turtle World by TheCattin
Premise: A small version of the world is contained Within The World Itself (and mounted on a turtle).
Self explanatory?

This means whenever the turtle gets jostled, the whole universe shakes! It's a 2D platformer with the turtle acting pretty much like a Mario turtle. But since it is also the containing universe if it bounces off a wall everything gets jerked to the side.. and so forth. Of course the World-Turtle is immune from those physics effects since that would create an infinite loop. It's a special turtle.
(The premise is from the Futurama episode The Farnsworth Parabox and from the Turtles All The Way Down story)

Using: - Unity 5 - Sketch
| Original URL | https://ldjam.com/events/ludum-dare/38/turtle-world |
Ratings
| Overall | 738th | 2.526⭐ | 21🧑⚖️ |
| Fun | 709th | 2.368⭐ | 21🧑⚖️ |
| Innovation | 558th | 2.789⭐ | 21🧑⚖️ |
| Theme | 571th | 3⭐ | 21🧑⚖️ |
| Graphics | 730th | 1.684⭐ | 21🧑⚖️ |
| Audio | 433th | 2.647⭐ | 19🧑⚖️ |
| Humor | 269th | 2.944⭐ | 20🧑⚖️ |
| Mood | 733th | 2.167⭐ | 20🧑⚖️ |
| Given | 18🗳️ | 0🗨️ |
If you like, please take a look at the game me and my team made for the jam, you can find a link to it on my profile
Our game: https://ldjam.com/events/ludum-dare/38/star-keeper
At first I didn't get it, that's probably a tutorial issue. As with every novel concept you have to get it into the player heads before they can enjoy it. You should put quite some effort in this so not understanding wont be a hindrance for your game.