how can i like play it?

[iAim]

How can i like test or play the game ?

[Epoxyh]

You need a code with an invitation, currently it works on the principle that anyone who receives a code, according to what is written on the forum, will later receive another 4 codes to give away. Ask friends who play the game or look online, there are people who share the code publicly because they have no one else to share it with. 

The biggest chance, however, is if you watch streamers playing the game, there is a possibility that they will share the code they receive with viewers - then first come, first served.

[Keysharpe]

Stick around in the forums on Wednesdays, invites go out on that day and there's often many players with codes to spare. You can ask in here or on the Soulframe Reddit page.