A blend of STALKER and Minecraft, Facepunch Studio's Rust aims to be online survival with no rules.
Update: Registration for the open beta has been closed.
Garry Newman and Facepunch Studios made a name for themselves by turning Half-Life 2 into a toy box with Garry's Mod. Now, they're looking to take that odd blend of construction and multiplayer and add a healthy dose of survivalism. Enter Rust. A bit of Minecraft, a dash of STALKER, and a peck of DayZ, Rust is a multiplayer survival game with player freedom as its highest priority. You can test the alpha online right now.
Admittedly, Rust started out as a DayZ clone, until the developers decided that they were "sick of fighting zombies." So, they opened the world up a bit and added more crafting to the mix. Facepunch wants to avoid the green/red tagging system used by DayZ to identify player killers, and instead give the players tools, not labels. "Our job should be to give the players the tools they need," Newman posted. "If you're sick of getting killed - start a town. Build town walls. Give all the town members red clothes. Put warning signs up outside the town. Set up trip wires and alarms. Watch each others back."
You can play the alpha right in your browser by clicking here. When it prompts for the beta key, simply enter any seven-digit combination and hit next. It's rough, buggy, and not particularly pretty, but it should give you an idea of what Facepunch has in mind.