The real-world property game built on Ethereum
Address Quest™
Predict real estate market strength. Compete for 10,000 ETH.
Address Quest™ is Mapstone’s skill-based competition powered by real estate data. Collect Address NFTs, earn points based on real-world performance by postal code, and compete for ETH rewards.
10,000 ETH distributed amongst the top 1,000 players
Real market data powered by Zillow Home Value Index (ZHVI)
Skill-based gameplay driven by strategy and positioning
Every transaction on Mapstone’s platform contributes to a growing prize pool until its target is reached, with gameplay and rewards transparently recorded on the blockchain. View official game rules →
Current Prize Pool:0 ETH
Target:10,000 ETH
| Rank * | User | Points | Reward (ETH) |
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How to play
Choose locations. Earn points. Win ETH.
Analyze real estate market data, build your portfolio of Address NFTs, and earn Address Quest™ points based on how your selected postal codes perform in the real world.
Research postal code trends
Use Mapstone’s data explorer to analyze Zillow Home Value Index (ZHVI) trends and identify U.S. postal codes showing strength, momentum, or changing market conditions.
Collect Address NFTs
Strategically mint and trade Address NFTs on Mapstone. Choose addresses in postal codes you believe will increase in value in the real world. Lock in your picks by the last day of each month, when Mapstone records the NFTs you own.
Earn AQ points
When new Zillow data is released, AQ points are applied based on real-world home value changes by postal code. Address NFTs in postal codes with rising market values gain points, while those with declining values lose points.
Climb the leaderboard
AQ points accumulate across the season as players compete for higher leaderboard positions. Once the prize pool reaches 10,000 ETH, Address Quest™ v1.0 concludes and the top 1,000 players earn ETH rewards.
How scoring works
Address Quest™ points are based on monthly home value changes using Zillow Home Value Index (ZHVI) data by U.S. postal code.
Formula
AQ points = monthly ZHVI % change × 100
You earn 1 point for every 0.01% increase in ZHVI for the postal code tied to your Address NFT. You lose 1 point for every 0.01% decrease.
Flow
- Mapstone records month-end snapshots to capture the Address NFTs you own at the final moment of each month.
- Zillow then publishes new ZHVI data for the full month that just ended.
- Mapstone uses that postal code data to score the Address NFTs you owned at the month-end snapshot.
Only Address NFTs earn AQ points. Neighborhood NFTs do not qualify.
Example
- Suppose you owned this Address NFT at the month-end snapshot for February 2026:
Beverly Hills, CA 90210
- Zillow later publishes updated ZHVI data showing postal code 90210 increased +0.52% for February 2026, compared to January 2026
- You’d gain 52 AQ points for owning an Address NFT in 90210 at the February 2026 month-end snapshot:
On-chain reward model
What powers the 10,000 ETH prize pool
Address Quest™ rewards are funded by activity across the Mapstone platform. 10% of every NFT mint and 1% of every marketplace sale are allocated on-chain to the Address Quest™ prize pool until the 10,000 ETH target is reached.
As platform activity grows, the prize pool grows with it, creating a transparent link between ecosystem usage and final ETH rewards for top players.
Mint activity
Every NFT mint on Mapstone contributes 10% of the mint price to the prize pool.
Marketplace activity
Every NFT sale on the Mapstone marketplace contributes 1% of the sale price to the prize pool.
Prize pool grows
These allocations accumulate on-chain over time, growing the prize pool toward its 10,000 ETH target for final rewards.
Data explorer
Find the strongest markets and make smarter moves
Address Quest™ is a strategy game, not a guessing game. Explore real Zillow Home Value Index (ZHVI) data by postal code, track monthly changes, and spot areas showing strength or weakness before the next month-end snapshot.
The players with the best edge use real estate data to decide where to mint, hold, trade, or reposition before scoring locks in.
Explore postal code data
Earn bonus points
More ways to climb the leaderboard
Address Quest™ starts with real estate market performance, but throughout the game players can also earn bonus points through additional activities across the platform and community.
Referral bonuses
Referrals already earn on-chain commission from NFT mints, and over the course of the game they can also unlock bonus point opportunities that reward players who help grow the network.
Seasonal challenges
Throughout the game, Mapstone activates timed competitions, prediction challenges, and special objectives that give players additional ways to earn points and climb the leaderboard.
Platform activity
Address Quest™ also rewards players for activity on the platform, such as logging in regularly, completing their profile, or owning different types of Address NFTs, including Gold, Platinum, and Charity NFTs.
Community participation
Mapstone periodically runs events and announcements where players can earn bonus points by completing simple actions or participating in social media challenges.
Additional point opportunities are introduced over time and announced through official Mapstone channels.
Game intel
Address Quest™ FAQs
The details that matter once you start thinking like a player.
Address Quest™ is Mapstone’s skill-based competition where players collect Address NFTs and earn points based on real-world postal code performance. The game uses Zillow Home Value Index (ZHVI) data to track market movement, rank players on a leaderboard, and determine who rises into the top 1,000 and walks away with ETH rewards.
Address Quest™ points are primarily earned from the monthly percentage change in ZHVI for the postal code tied to the Address NFTs you own. Each 0.01% increase earns 1 point, and each 0.01% decrease loses 1 point. Points are applied once Zillow releases the completed monthly data, typically within ~2 weeks after month-end.
Mapstone may also introduce supplemental point opportunities from time to time, such as special challenges, promotions, or ecosystem activities.
Mapstone records a snapshot of all Address NFT ownership at on the last day of each month. The Address NFTs you hold at that exact moment are the ones that get scored for that month.
If you sell before the snapshot, you will not receive points for that NFT. If you mint, buy, or hold through the snapshot, you will receive points based on that postal code once the monthly Zillow data is released.
You can play with as many Address NFTs as you want across as many postal codes as you choose. Each Address NFT contributes independently to your total Address Quest™ points based on its postal code’s monthly ZHVI performance.
Neighborhood NFTs do not qualify for Address Quest™ points because they earn their own separate royalties.
The Address Quest™ prize pool is funded on-chain through platform activity. 10% of every NFT mint and 1% of every marketplace sale are allocated to the prize pool until the target is reached. Address Quest™ v1.0 continues until the prize pool reaches the level required to fund the published reward structure, with a target prize pool of 10,000 ETH. All allocations are executed automatically on-chain and are fully transparent.
At the conclusion of Address Quest™ v1.0, the top 1,000 players on the leaderboard earn ETH rewards based on their final rank. If players are tied on points, rankings are determined by total referral rewards earned, then number of referral events, and then earlier account creation date. To participate and claim rewards, players must be at least 18 years old, complete identity verification and compliance checks, and submit any required tax documentation within the claim period.
Address Quest™ uses Zillow Home Value Index (ZHVI) data, which represents the typical home value in a given postal code. Zillow calculates this as a weighted average of the middle third of homes in a region, rather than a simple median.
Zillow often publishes smoothed and seasonally adjusted versions of this data, but Mapstone instead uses the raw ZHVI data directly, so scoring reflects real month-to-month market movement.
Zillow typically releases completed monthly data within ~2 weeks after month-end.
There is no single winning strategy. The strongest players actively study market trends, diversify across postal codes, and reposition their Address NFTs before the month-end snapshot when needed. Address Quest™ rewards players who stay informed, think ahead, and make disciplined decisions over time.
Start playing
Ready to build your portfolio and compete for ETH?
Address Quest™ rewards players who act early and think strategically.