Not Gate

[TannerJ07]

The top square is the input, the top circle sends out the output, and the bottom right circle is the output.

[TannerJ07]

I've done some more testing, and I honestly don't think it can be any simpler. This game would also function greatly with a copy paste mechanic.

[TodePond]

this is so cool!

[mahdoosh1]

This game would also function greatly with a copy paste mechanic.

or if it had a way to compact everything down to one custom node

[TannerJ07]

Ooh cool idea, might get confusing with a lot of custom nodes, Depends on how it is implemented.