Let's do away with logic! It's more interesting if it warps the mind.

Rules:

1. Development must start no earlier than January 1st, 2019
2. The project may use any number of the themes (even 0 if you already have an idea)
3. The project should at least be playable on Windows or in the browser. Android support would be appreciated. (For multi-platform compatability, you might consider using a fantasy console like TIC-80)
4. Teams can be of at most 10 people.
5. Use of pre-made assets is allowed, so long as you comply with any licensing they may have.

Themes: warp, falling up, in two places at once