BUILDCHAIN
Honest mechanics—drops, quests, and rewards for the community, not hidden margins or mystery odds.
$2.4M
Total won
12.8K
Builders
47
Drops
120+
Experiences
Community
Rank up, book experiences, wire your builder profile—and read the Building Culture mission for BCD genesis context. Hangouts surface when URLs are set.
Leaderboard
XP, quests, bragging rights
Open →Experiences
Spotlight drops & IRL loops
Open →Your profile
Quests, builder card, links
Open →Official hangout links land here when they're live—for now, climb ranks and shape your builder profile.
Explore
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by BUILDCHAIN Residences
Win seven to ten nights in the Berggasse penthouse—full residence access with Vienna at your doorstep. Each ticket enters a fair draw; one holder receives coordinated fulfillment after selection. Transparent odds on-chain; the stay is IRL.
Asset value
Up to 10 nights · penthouse
Ticket price
≈ 0 BCD
per ticket (display)
0.05 ETH · demo estimate
Connect a wallet to mint.
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by Night Edition
A curated adults-only evening in Vienna built around atmosphere, discretion, and detail. Mint for the draw; one winner unlocks the full experience. Selection is verifiable on-chain; the night stays private where it belongs.
Asset value
VIP evening · adults-only
Ticket price
≈ 0 BCD
per ticket (display)
0.05 ETH · demo estimate
Set VITE_RAFFLE_CAMPAIGN_ADDRESS for live mint.
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by Convention Floor
Convention access for ART in Vienna—win and leave with an original painting from the featured wall. Ticketing lives on-chain; the artwork ships after the draw. Collect the moment; the ledger keeps the receipt.
Asset value
Entry + original work
Ticket price
≈ 0 BCD
per ticket (display)
0.05 ETH · demo estimate
Set VITE_RAFFLE_CAMPAIGN_ADDRESS for live mint.
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by BUILDCHAIN Stays
One week at the Hilton in Vienna—room as your base—with dinner on three evenings and art-and-culture afternoons on three days across the city. Each ticket enters a fair draw; one winner receives coordinated booking after selection. Transparent odds on-chain; the itinerary is IRL.
Asset value
7 nights · 3 dinners · 3 art afternoons
Ticket price
≈ 0 BCD
per ticket (display)
0.05 ETH · demo estimate
Set VITE_RAFFLE_CAMPAIGN_ADDRESS for live mint.
How it works
Buy or earn NFT tickets for active drops
Gain XP, complete quests, climb the ranks
Provably fair onchain selection (commit–reveal MVP)
Real art, stays & hubs — fulfillment off-chain, rules on-chain