For the most part the game is fun. I enjoy the gameplay loop of mining ores to upgrade your tools, to get into dungeons to get parts for spaceships that let you explore new planets. My biggest gripe with the gameplay would definitely be the frustrating combat; you die way too easily and the reaper enemy is just such bullshit.
The day also goes by way too fast. I basically have no time to do anything before being thrusted into the night.
The game is also really ugly. The mish-mash of random art assets thrown together just looks so bad.
Apart from that, pretty solid game.