The drone lets go, and you're discarded like trash.
Coming to, you find yourself among the bodies of others like you. The machines that brought you here pay you no mind. To them you are only a Null Signal.
Null Signal is a first-person survival game set after the fall of humanity due to an AI called AXIS. Its machines still hunt what's left of us, and nature is slowly taking back everything else. You're stuck in the middle.
A World That Moved On
Every new game builds a vast procedural world of its own, from dry scrubland and overgrown forest up into the mountains. Empty towns and ruins of what once was sit along old highways, begging to be looted.
Below the Surface
Dark caves and old buried complexes lie under your feet. Perhaps something else has taken up residence in humanity's absence?
AXIS Raids
Defend your base from periodic AXIS raids, growing more frequent the larger and more advanced your base becomes.
Fight Back
Raid Data Centers and other AXIS Bastions to reduce their power and influence in the area, choosing to destroy them or use the technology therein for yourself.
Build and Dig
Raise a shelter in a variety of styles, furnish it with what you find in the ruins, and hold it when the machines arrive. Grab a shovel and you can reshape the land too, from a simple path to a tunnel into the hillside or an underground bunker.
Hit the Road
Abandoned vehicles are scattered across the world, but getting them up and running is both difficult and rewarding.
Scavenge and Grow
The world has become contaminated with a waste product called AXIS Dust, which has left ordinary items you find mutated or augmented with power. Loot and craft a multitude of weapons and armor brimming with stat modifications.
Alone or With Friends
Play on your own, or invite friends through Steam and survive together.
More to Find
Custom world settings, including hardcore for those who want it
A traveling merchant to trade with, if you can find him
Wildlife to hunt and wrecked machines to salvage
Rare, tougher creatures with better loot
What Happened Here?
There's no one left to tell you. The answers are out there in what remains, if you survive long enough to find them.