Decisive Campaigns: Case Blue

Decisive Campaigns: Case Blue simulates the German drive to Stalingrad and into the Caucasus of the summer of 1942, as well as its May preludes (2nd Kharkov offensive, Operation Trappenjagd) and also the Soviet winter counter-offensive (Operation Uranus) that ended with the encirclement of 6th Army in Stalingrad.

Region: Global. Check that the key's region matches your Steam account's country before buying — region-locked keys can't be activated elsewhere.

What you get: one unique, unused product key, shown on your order page (and in your account) once payment is confirmed — usually within minutes, and at most 24 hours. No physical item is shipped.

How to activate: open the Steam client, choose Games → Activate a Product on Steam, accept the subscriber agreement and paste your key. The game then appears in your library, ready to download.

Requirements: a Steam account and the Steam client. System requirements are set by the publisher and listed on the game's Steam store page.