Synergy 로 3D 게임할 때 마우스 처리.

To play 3D games with Synergy:
Check the “use relative mouse moves” in the synergy server configuration and bind a key to “lock cursor to screen”. When you are on the client machine press the key to lock the cursor to the screen and then your mouse will work for games there. Of course, you can’t get your mouse off the screen without unlocking it (press hotkey again) but it’s better than nothing.

The other option is to use different software which can be found at dual-boxing.com

라는 군요.