Kyrub's patch builds on Scient's 2010 patch and attempts to improve Alpha Centauri's AI and, in particular, the AI's terraforming performance. The patch has been in development on and off since its release in 2011.
There are two versions of this patch:
- Kyrub's SMACSid Meier's Alpha Centauri_444_experiment for SMAC (latest version as of July 2015)
- Kyrub's SMAXSid Meier's Alien Crossfire (Cross = X) patch PLUS for SMAX (not recommended, changes incorporated in Yitzi's patch)
The SMAX patch lacks many of the features of the SMAC patch and does not appear to be actively maintained (2014).