Loads of fun, one of my most favorite Sid games. Never in a grid strategy game could go so fast and entertaining. You could terraform the planet like Earth or keep the planet as is and live with the mindworms and their red fungal habitat. One problem though which happened not too long ago. Windows updated 11 and it uncovered a 25 year old bug in the Alien Crossfire part of Alpha Centauri. There is a patch with the Thinker mod, it's on GitHub but other sites will give you a link to it
