So I went and checked Civilization V steamdb/stats: https://steamdb.info/app/8930/stats/ I advise you to scroll down to STATS. There's a bunch of stats in STATS, and they're not Achievements. I haven't played CIV V in ages. Could someone tell me where do these appear in game? Is there a panel in game that keeps all this info? The _STATS_ in STK1_STATS_ could strongly suggest these are actually In-game STATISTICS, just like they were in CIV V. The statistics seem to be all of the type sum, "Total number of this, Total number of that". Given this additional info, STK could just mean something like Key Stats. --- So my new interpretation is that they are just adding a new panel with added statistics in-game. Read below. I missed the obvious. Edit: Stats Kit too.