This diagram models a subterranean survival RPG where players navigate regional hazards and manage critical life-support systems while traversing different depths. The player's location is tracked by the Current area Pool, which influences the chance of encountering hostile forces at the Check for enemies Gate or hazardous pockets at the Check for gas Gate. To survive these encounters, players must manage a network of interconnected vitals: the Health Pool can be restored by consuming resources from the Medicine Pool through the Use medicine Converter, while toxic gas depletes the Gasmask Pool, requiring players to burn resources from the Air tanks Pool in the Refill mask Converter or use the Oillamp Pool to light their way. As players actively explore, automatic gates trigger searching actions that yield raw materials like the Nitrate Pool, the Minerals Pool, or rare loot from the Unlooted corpses Pool. These gathered materials feed directly into a complex trading economy driven by interactions with various underground factions. Initiating contact with characters like the soldier or arms dealer populates the Current NPC Pool, which dynamically scales buy and sell prices across a series of math registers to alter exchange rates with the Trade value Pool. Players trade surplus resources to obtain vital exploration assets, such as the Climbing tools Pool, which are mandatory to bypass depth blockages and progress to deeper areas. Ultimately, the player must balance their limited supplies, survive combat and gas leaks, and successfully reach the final zone to locate the primordial sea, which satisfies the Win game End Condition and completes the loop.
