Submachine, submachine, sumbachine!
I am not complaining that his is a ripoff because I like Submachine and if someone is making more then it's original author then so be it.
This one however didn't have as mysterious a feel. Because you say it is virtual reality whereas Submachine is not merely a virtual reality - it is something more ambiguous - something inexplainable, something never fully comprehensible for a human mind.
Also this is short and too easy. A different code for each play trough is a good touch trough.
I must give this a low score but if future chapters are longer and puzzles are more changing I am offering up to 4.5 stars. For 5 stars try to find something that makes this series unique and in some way better and different than Submachine.