Story Premise

The year is 2150. A devastating virus has ravaged Earth, wiping out 99% of the population and leaving the planet a crumbling wasteland. The remnants of humankind have fled to Mars, establishing a fragile new civilization. However, the survival of humanity depends on one thing—the recovery of the Original Gene, the key to sustaining life and reversing the effects of the virus.

The gene lies locked away in an abandoned lab on Earth, a planet now overrun by hordes of ravenous zombies, toxic gases, and lethal radiation. In a desperate bid to secure their future, the Mars Council sends a lone operative, The Player, back to the decimated Earth. Their mission: retrieve the Original Gene and return before their oxygen runs out.

Gameplay Overview:
The journey to the lab is treacherous, and survival is a race against time. Armed with limited oxygen and a small arsenal of weapons, the player must navigate through a series of collapsed cities, hazardous environments, and unrelenting zombie-infested zones. Every second counts as oxygen levels deplete with every breath, and the hostile environment grows more dangerous.

Oxygen Management: The player must keep an eye on their oxygen reserves, scavenging for canisters hidden throughout the levels. Without oxygen, survival is impossible.

Combat and Speed: Zombies block the path forward, and the only way to survive is to eliminate them quickly. Killing zombies rewards oxygen boosts and ammo, helping the player press on.

Upgrades and Items: Along the way, players can discover powerful weapons, explosives, and tools to aid in their mission. Some rare items can even help resist the radiation or neutralize toxic gases.

Environmental Hazards: Toxic gas clouds, radiation zones, collapsing structures, and extreme weather conditions constantly threaten the player's progress.

The Final Lab: Reaching the lab is only half the battle. The player must bypass its security systems, retrieve the gene, and make it back to the extraction point before their oxygen supply runs out.

Key Themes

Survival: Every decision matters. The player must balance exploration, combat, and speed to conserve their oxygen while completing the mission.
Tension and Danger: The desolate Earth is full of dangers, from swarming zombies to environmental perils, making every moment a test of skill and resourcefulness.

Hope Against All Odds: The mission symbolizes humanity's resilience and determination to survive, even in the face of overwhelming despair.