@BlinkRape yeah it looks good, the dev is a madman apparently, adding in new features all the time. 3d model support is planned as well. I'm looking at it as a potential engine to use in the future depending on how it looks when I'm done with God's Disdain.
@beardalaxy @BlinkRape There is also O.H.R.RPG.C.E. (Official Hamster Republic Role Playing Game Construction Engine) (dumb name and acronym) which is FOSS, but it seems to be only suited for NES/SNES style RPGs.
https://rpg.hamsterrepublic.com/ohrrpgce/Main_Page
You also have Solarus which is basically the RPG Maker equivalent for Zelda-clones. It supports Lua scripting and is FOSS.
https://www.solarus-games.org/