I played a few times from the beginning. In first two i couldn't find the escape button so i got stuck. Then i got wiped in other 2 runs, then i realized i can save the game but it didn't help improving my experience honestly. After a rough onboarding, i started the game for real but i couldn't go too far bcs after a few fights i ran out of curative items and ammo having to go all the way back to the portal, get wiped out while trying to escape the monsters. This loop burned me out hard after a few runs and i threw the towel at last. Another thing is that i think characters should have a melee attack as a fallback. When you get out of ammo, you're just helpless and forced go all the way back to town. I don't know how CryptRat beat the game but i couldn't come even close to it :) I think the enemies are too tough for a starting area, there's some balance issue here.
To talk about the graphics of the game, i like the atmosphere and aesthetics in general but i think you should have used a wider range of textures. I think there are the same green leaf textures everywhere, walls, ceiling, ground. Only different texture is the water. The green tone is way too dominant in my opinion. Also i played your game in last year's jam. It was one of my most favorite games in that jam. Most of the assets in this game are the same with that game. If i hadn't played it, that probably wouldn't bother me that much. Enemy sprites look nice, i like their animation and general particle effects in combat.
Map design is pretty cool. The verticality, pushing rocks, using them as a bridge etc. I'm familiar to it from the last year's game but it looks good in this game too. The systems in the game work very well and stable. I played the browser version.