What engine was this made in? It's pretty lightweight I would totally use this engine for a game
blitz 3d. it's so old its website no longer exists. and it's also free https://blitzresearch.itch.io/blitz3d
blitz 3d user here, gotta say nicely done
with a few techniques, coding and art alchemy blitz 3d can do some pretty interesting things.
check it out ... https://cartrdge.com/mrmediamanx/animated-texture-3d
all and all if you need a hand let me know .... im cool with it.