https://minilanguage.com/ is an interesting one to look at. There are exactly 1000 words in the total vocabulary. That’s Mini Mundo though. A second, smaller variant also exists: Mini Kore, with 100 words.

I started learning it too soon after learning Toki Pona and lost steam. But I agree with the design principles. They stem from the observation that Toki Pona, as fun as it is, is just too damn ambiguous for anything non-superficial. All too often speakers need to clarify what they said by switching to a natural language. Even my own Toki notes become indecipherable after a few days.

Toki Pona: fun, therapeutic mental exercise, made even better with sitelen pona. Feels like writing poetry. Never meant to be a useful language. Easy to learn, hard to use.

Mini: useful as a language for general purpose communication. Small, primarily latinate vocabulary. Harder to learn, easier to use.