Does Captain chords work in Reason 10? This plugin looks so good but i saw reason users posting that it doesnt work :(

It works only partially.
Captain Chords, Captain Deep and Melody (beta) work. You can make songs and play around. I use it sometimes.
Captain Play don't. You can't play using the PC keyboard too. Only your MIDI controller.
You can play only with the internal sounds of Captain. Reason doesn't work with VST MIDI.
You can build your chord progression, then your bassline (very basic) and then your melody.
But in order to learn how to use Captain Melody, prepare yourself to try many things many times.
There's no much help available.
But in the end, you can get some basic idea to develop in Reason sequencer.