Sources

Build and Kill Zombies Sources & Data Notes

Every answer on this site is built from the sources below — official first, then dated community reports.

Primary references

Where our data comes from

Official Roblox sources lead every answer; community reports fill the gaps and are always labeled as reported.

The official Build and Kill Zombies page: play the game, check badges, and see the creator's updates.

The developer group behind the game — the closest thing to an official announcement channel.

Whether official boards, Discord, or wikis exist — with the sibling-game disambiguation.