Case studies
The architecture, the hard decisions, the failure modes I handled in production, and the numbers — no client source. Each one is a system I built and operated end to end.
Warzones
liveThe blockchain-gaming backend behind a full Algorand NFT economy: NFT-gated play, a primary + secondary marketplace, live auctions, shuffle raffles, staking vaults, and a multi-type airdrop engine — three frontends in one client ecosystem, 2+ years live.
925 commits · 63 models · 3 frontends · ~28 mo
ShootOut
liveDiscord-native penalty-shootout tournaments where players wager crypto for the pot: a tournament engine on a custodial double-entry ledger. No public site — it's played in Discord, with an internal admin dashboard behind it.
288 commits · tournament engine · double-entry ledger
ViewReward
liveAdvertising with profit-sharing: advertisers fund campaigns, viewers earn for watching — guarded by an on-chain Sybil-detection engine, with a deep airdrop + staking layer.
1,647 commits · 36 models · on-chain Sybil engine
DDAO-Lottery
liveA provably-fair platform running four lottery games on Algorand, with a DeFi treasury (Tinyman swap/LP/buyback) and custodial deposit/withdraw — full-stack: backend, WalletConnect wallet, and admin dashboard.
704 BE + 175 FE · 4 lottery games · commit-reveal
Pigeon Puffs
liveA play-to-earn blockchain game wired into a full DeFi + NFT economy: in-game NFT avatars, token rewards, deep anti-cheat, multi-DEX LP rewards, and ARC-19 minting — rewards and rankings derived straight from on-chain state.
442 commits · 48 models · multi-DEX LP + anti-cheat
Crazy Embryo Club
liveA gamified NFT-staking economy: holders send their NFTs on time-boxed treasure-hunt 'Missions' to win tiered on-chain loot, dealt by a 4-tier weighted reward engine built to stay fair and solvent.
89 commits (100%) · 4-tier reward engine
ChainBois
testnetA play-to-earn military shooter you can play with no wallet at all — a web2 + web3 hybrid (capped $BATTLE token, on-chain level-ups, tournaments) over contracts, backend, and faucet UI I built end-to-end on Avalanche.
73 commits · 258 tests · web2 + web3 hybrid
Redeemify
retiredA marketplace for NFTs with physical items attached — redeem the item, mark the NFT redeemed, guarded against double-redeems across every collection.
52 commits · cross-collection redeem guard · retired
Ghetto Warzones
liveThe playable client for Warzones — a blockchain multiplayer FPS shipped to Google Play + PC (integration & release engineering on an MFPS 2.0 base).
63 commits · Android + PC builds