Hopefully this new version will fix a lot of issues, but if the old version worked better for you it is still available, just go in to properties on Hammerwatch, go to the Betas tab and select 1.3 in the drop down list.

Misc:

• Local multiplayer game saves now show up in the multiplayer load menu instead of the singleplayer load menu
• Added slight directional effect to sound effects via panning (can be turned off in options)
• Auto-fire is a bit faster now

Technical:

• Replaced the OpenAL sound engine with FMOD
• Added Steam integration for 64-bit Linux systems
• Updated Mono on Linux/Mac version
• Updated the Steam API

Editor features:

• Removed 100mb Steam Workshop limit
• Sound effects can now be .ogg