Okay, I'll add a resurrection to game, it's a nice idea. I'll need some time to implement it. I will notify you when I upload a new version.
About spider: its speed is a kind of jumpscare. The spider also avoids targeting from a distance. It looks scary, but it actually has a weakness: when you stand under it or right next to it, player enters a "dead zone" where the spider can't hurt you. So instead of running away from monster or standing still, the best tactic is to run towards him. I added a red zone on image where player is safe:
Feel free for asking any additional questions about enemies/quests or mechanics!