Hey, this game looks cool!
Same situation I had with a previous user, my computer won't handle this game... It's not a potato, but it might as well be with how much I have backed up lol.
Everything you have going here seems very unique, with the open-world aspect of the 3D tower defense genre in play. It's probably really fun to spend some time defending, but to run off and take care of some offense as well. It gives lots of versatility to the gameplay, opening the play up to several options to strategically defend and attack.
I'm thinking there can be so many possibilities for things to do while your off your tower... Maybe some funny NPC interactions, some side quests here and there. But I'm also imagining you'd have to do all that while under the watch of the tower, making sure you can get back in time to thwart any attacks. It would be cool to see the main character just sling shotting across the map to other towers and hijacking them, beating the crap out of enemies and taking over their base. Maybe that can even link to the side quests, if you retrieve an item that was stolen from an NPC. I'm getting too RPG now...
Feel free to give my game a shot, I could use your feedback: https://wasabiiii.itch.io/grass-elemental-demo-demo
I hope everyone else can play this, it looks really fun. Great job on this, you clearly put in the effort!