I bought 3 copies of this game. The original Solaris 1.0.4 along with both Spanish re-releases - Mars Invader FX. I first found this game when I was a teen on shareware magazines. Every time I was given 5€ allowance I'd spend on these CD-ROM and discover new games. Solaris made an impression with its pre-rendered graphics and music. The weapon system was quite decent too. Unfortunately, the original installment is not compatible with modern operating systems. But Mars Invader still works. Hoping to see this game re-released on Gog.