The artstyle of the game didn't appeal to me much but i respect your decision. The overall atmosphere is pretty cool though. The eerie sci-fi music and ambience sound really enchances the atmosphere of the game. The galaxy map idea is a very ambitious and cool idea but you managed to execute it perfectly. I love how all three planets have distinct biomes and enemies. Inventory system works perfectly , so is the gridbased moving. It fits the theme but getting stuck in an infinite loop made me feel that i didn't beat the game. The loop thing usually goes well with roguelikes but i think it's nice to do someting out of the usual formula sometimes.
A pretty solid entry to make in only 9 days. I salute you for your great work sir!
Edit: I encountered some bugs playing the game. One of them is you get an error message after you get the crystal in the lava planet. A console appears on top of the screen. The other one is i got stuck and had to restart the game after the hallucination when i first enter the lava planet.