It seems to be a false positive. This game only uses the direct exported files from RPG Maker VX Ace and The RG-Direct version of Game.EXE.
Viewing post in tetrix rpg 3: Textris is very tired yawn DEMO (2021) comments
thank god, got me scared for a moment lol
checked virustotal (https://www.virustotal.com/gui/file/6f6f20fe10b07de51ee52e553b0caba824e01d8b2c6a... , for anyone interested in case), you should probably check if you can see something (yeah im saying it also on Twitter so ppl know its a false positive)