Spent about 45 hours terraforming my first planet, and loved every minute of it. The game feels super serene and it's easy to get immersed and forget that hours have passed. The only danger comes from not keeping an eye on your life support and taking a meteorite to the face. Seeing the planet come to life step by step also made me happy. Then, discovering there might be more to the planet than sand, rocks and some moss was very exciting too!