In some ways it reminded me of being back at Black Mesa.
Some of the levels were very frustrating and after repeating them 15 to 20 times, I had to find a walk-through video just to finish.
The physics is a bit choppy and its difficult to place objects on top of one another. Fire effects are poor. Character joints are not realistic. I wish there was a way to save the game, but instead it uses checkpoints to save progress periodically which can be doubly frustrating to get through a level at times.
Perhaps there are some similarities to Portal where the protagonist has no weapons and uses physics to make her way through a labyrinth of underground corridors, tunnels, and hallways.
Overall though, it was okay for the price.