SANCTION is a post-apocalyptic shooter with a first-person view and survival elements. In the game you have to survive among mutant zombies. The main character is a prisoner who was given the task of leaving the safe bunker outside and collecting supplies necessary for the remaining survivors. However, everything around is teeming with dangerous creatures hunting people. For supplies found during the passage, you can buy various upgrades from merchants. The game allows you to add all kinds of attachments to your weapons. To stay on the surface, the character must use special filters, the effect of which is limited.