[boomlinde]

The PICO-8 language is just Lua with some minor syntactic sugar.

It's also worth noting that TIC-80 has a $5 "PRO" version; the free (as in no cost) and open source version is basically shareware.

[Nullabillity]

From the README:

> For users who can't spend the money, we made it easy to build the pro version from the source code.

So the pro version is still FOSS, their builds are just not gratis.

[jacquesm]

That's a nice mixed model.