An Advanced Tobruk System (ATS) TT expansion recreating the famous tank and infantry battles in the vicinity of the River Psel and the all important high ground of Hill 226.6 in the Soviet Union, July 1943. Psel River Crossing utilizes the tried and true Advanced Tobruk System rules incorporating the new "TT" variant rules which feature new machine gun options, new collateral fire rules and the Advance to Contact sequence of play, among others. This game includes new combat unit counters, scenarios, a comprehensive ATS Battlefield Walkaround and a remastered map based on the one found previously in Clash Along the Psel. Ownership of standard ATS rules, playaids and informational counters is required.