I don't understand the attitude about donations. The developer wrote an awe-inspiring work of art and has been giving it away without demand for years. He asks for donations with clear set goals of what they go toward for improving the software. Take it or leave it.<p>Yes, an open-source version would be valuable and I invite anyone here to start one.
YES! Everyone should try this. Sometimes I can get lost in it for hours, just floating around the galaxies...<p>It's so cool that everything you see, every little star in each Galaxy you can zoom into and check out. Check the simulated atmosphere of every planet, check the rough surfaces of every little asteroid. All procedurally generated and very mind blowing.