Thanks for the feedback, I took a risk making a game aimed at more advanced players in the genre, and I'm glad to see those people enjoy it, even if it's quite hard for newbies (even despite n erfing the game HARD. friendly fire used to do full damage and the basic creatures could 3 shot an average marine)
I'm really glad you got the vibes of the enemies, I was going for an event horizon/doom/E.Y.E feeling with psychic or demonic entities in space, it's a bit tricky to convey that with such simple flat sprite art but I'm glad it clicked for you! There are actually 2 big guys on the ship, but only the one in the reactor fight is truly mandatory.
It always bothered me that the genre has moved towards more percentage based dice rolls when I prefered the simulation elements (I'm a big original xcom fan) which is where the aiming system comes from, it's up to the player to make the call rather than guesstimating a percentage. For snap shots though there is a secret mechanic where you have a bonus chance to make a 'clean shot' where the bullet is guaranteed to go perfectly straight, based on your characters accuracy. As for bonus weapons, there are two, you can find PDWs (an smg alternative) or the revolver on the bridge. I wanted to do more but scope...
Messaging is a very important factor I missed for sure, I really wanted a damage log but it slipped out of my fingers. I also wanted a UI element that would let you cycle through enemy units that were visible to you. A common factor I've seen is people being unable to identify enemies among corpses etc, so that needs a rehaul. There are also some issues with fog of war, many players don't seem to understand the view cones which made them miss obvious enemies.
One question for you since you seem invested in this type of game, what did you think of the reaction fire mechanic? Did you understand it? It's similar to original x-com but I tweaked it based on some things I don't like about their system. I'm happy to explain the mechanic fully but I think it would be valuable to get your thoughts without a technical explanation first :)