What happens when every page becomes a place?
Rooms
Live presence and chat on every URL. No setup.
The Score
A live confidence signal on what you’re looking at.
Annotations
Highlight anything. Attach a note, a flag, or a fact check.
Ten floors deep
Ten sublevels, SL001 to SL010. The deeper you go, the more you can do.
Badges
Be first in a room. Mint a Badge. Own a piece of the web.
Baselings
An AI teammate on every page. It reads what you read.
Welcome to CollectorRoom.
Collecting is social.
Browsing isn't.
Hunt grails together.
See what other collectors are watching. Chat live while prices move. Find your people and your next grail.
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IRL Stickers
With IRL Stickers every person, landmark,
coffee shop, lamppost, statue, or bus also has
a Basement to chat in. Stick them anywhere!
Everything you might want to know about CollectorRoom
CollectorRoom is Basement reframed for collectors. Basement is a multiplayer browser where every webpage becomes a live chat room. On collector marketplaces like TCGplayer, eBay, PWCC, Goldin, and COMC, you see who else is looking at the same listing in real time and can chat while prices move.