Installation instructions:
If installing using the full install: remove your existing Zombie Master directory (if any). Follow installer instructions. Install into your \Steam\steamapps\SourceMods directory, which should be detected automatically by the installer.
If installing a patch: just follow installer instructions.
IMPORTANT: Make sure you install the most recent full version, then install the patch. Only installing the latest patch will NOT work. If you get a singleplayer menu when you start ZM, you probably did this part wrong.
Zombie Master Beta 1.1.2->1.1.3 patch install:
Zombie Master Beta 1.1.2 full install:
Zombie Master Beta 1.1.1->1.1.2 patch install:
Zombie Master Beta Linux Dedicated Server 1.1.3 full:
Zombie Master Beta Linux Dedicated Server 1.1.2->1.1.3 patch:
Though the ZM team has released a public beta, this does not mean the mod is finished. Don't expect a fully polished game. Updates will be released whenever new content or bugfixes are ready to go.