Try out Quotient, the Game... Version 1.0 is now released! It's an interactive fiction game in the genre of Zork. You embark on a secret mission starting at Quotient HQ. You can meet the characters, fly the Quotient Jet, or even take a Rocket to TARDIS!
If you've never played Interactive Fiction (like Zork) before, it is entirely text based, and you walk around the imaginary world with commands like north, south, east, west, or n, s, e, w... Even up or down. You interact with items to solve puzzles. Here are some basic commands and their abbreviations:
examine [item/person] (or x [item/person]) take [item] inventory look at [item] enter, exit fly to [location] switch on [item] switch off [item] energize [item] talk to [person] ask [person] unlock [item] with [item] type [code] on [item] save restore and many more...