Stuck

Cally Slance wakes up knowing not where she is, how she got there, or even who she is. All she knows is that there's a time limit, seven others like her, and there's a female voice trailing her wherever she goes.
To get back home, to get her memories back, Cally must pass through each level accordingly and may even have to kill the others.
A game of life or death, and stuck in between, it's a full-out war who crosses her. M
Whoever reaches the top first, wins.