why after a few minutes of walking around I get blocked and can only move in two directions , I exit game and reload game and works for few minutes again. Great game apart from this .

I have the same issue.

Are you unable to rotate the camera 360 degrees or is it that the WASD keys stop working? Also is this on Windows, Mac or Linux?

I saw this happen twice during a recent four hour period of play testing. No errors appeared in the log files and it did not occur frequently enough to narrow down the cause. I suspect it was caused by some code that handled collisions for the player. I have completely reworked the player movement code in version 1.1.7 so this code no longer exists. I have yet to see the issue occur since. Thanks for reporting the issue.

not had the same issue since update thanks, great game hopefully more people pick it up . Keep the updates coming please.