https://store.steampowered.com/app/254080/World_War_III_Black_Gold/
Actual Armies. Actual Weapons. Actual Political Issues.

World War III - Black Gold takes the player to the near future. The political crisis has been going on for months, leading to worldwide turmoil. A secret conference of the UN Central Geological Commission reveals that worldwide oil reserves have reached dangerously low levels: Oil reserves will run out within 8-10 years. This proves too short for even the most highly industrialized countries to switch their economies to alternative energy sources. Soon, mass protests erupt all over the world, effectively shutting down the global economy. The Great Powers have declared WW III...

FEATURES:
2 Game modes: for beginners and experts
3 Campaigns on three sites: the US, Russia and Iraq in 30 epic missions of courage and honour
Fully 3D war terrain and units
Day/night cycles and variable weather conditions affect the game and your strategies
"Technology Tree" weapons research system
Tunnels, trenches and interconnected underground tunnel systems)
Ability to modify the 3D terrain (flattens terrain, create bulwarks or dig ditches)
Advanced electronic battle systems: communications tapping, photo stream capturing
Kamikaze and Stealth-units
Camouflage and Jamming systems
Defence systems: missile defence, decoys, anti-chemical filters
Anti-aircraft, anti-tank, mass destruction weapons
Challenging Multitplayer-Mode for up to 8 players over LAN & EarthNet

INSTRUCTION FOR ACTIVATION:

1. You must download and install Steam http://steampowered.com/download/SteamInstall.msi
2. Log in to your account or register a new one.
3. Go to the "My Games" section and select "Activate via Steam ..." and enter the key received after payment.
4. After activation, the game will appear in the list of games (Library) and you can download it