Echo

Usage of theme: After almost all humanity has been wiped out, you are a robot outside the boundaries of a bunker trying to keep the man inside alive.

Controls:

WASD - move
TAB - inventory
SHIFT - run
SPACE - attack (in direction of arrow)
Click on items on the ground to pick them up. Drop them (click in inventory) in the marked area near the bunker to send resources to the bunker (metal and food cans). Right click on batteries in the inventory to heal.

What's on the screen:

Red bar - robot (player)'s health
Yellow bar - stamina
Green bar - health of man inside bunker
Blue bar - bunker health
House icon - shows you the direction of the bunker

Lore : 

The world has crumbled.  A once-thriving civilization has been reduced to ruins, overrun by hordes of relentless zombies. The air is thick with the scent of decay, and the echoes of the past are drowned by the groans of the undead. 

In a bunker fortified with steel and desperation, resides Dr. Elias Carr , a brilliant but now frail inventor , and his creation, a robot named Echo. Dr. Elias Carr was once a visionary, a man who believed in the power of technology to save humanity. As the world collapsed, he poured his heart and soul into creating Echo, a robot designed to protect him and to adapt to the horrors of this new world.  Echo was not just a machine , it was a symbol of hope , a last desperate attempt to cling to life in a world that had already let go. 

The bunker is all that remains of their world. Dr. Carr, bedridden and weakened by illness and despair, spends his days working on the last remnants of his research , but his hope is fading. The supplies are dwindling, and each day is a battle for survival. Echo, programmed to protect and serve, takes on the daily mission to scavenge for food and supplies in the desolate wasteland outside the safety of the bunker borders.

The robot fights off hordes of zombies and searches through the wastelands of a once-great civilization. Each day outside the bunker is a test of Echo's abilities, pushing it to the limits as it adapts to the ever-changing dangers.

Credits:

Most of the art made by rapatzzo.