Keefer Sery

Expected-value tracker for World of Warcraft bonus rolls.

Ranks every boss you can spend a token on by the expected value of one roll. The subtlety is the denominator: a roll draws from the boss's entire loot table, not just the items your sim report bothered to score, so unscored items have to be filled in at zero value — they dilute the odds without adding upside, exactly as they do in game. That makes loot spec a lever rather than a filter, since switching specs can remove items you never wanted and improve the odds on every remaining one.

• Vanilla JS
• TypeScript (checkJs)
• Zero-build static
• Node test runner

Data-driven item builds for the game Deadlock, generated from live match data.

Most build sites rank items by win rate, but an item's win rate mostly measures when it gets bought — expensive items are bought by players already winning, so they look good regardless of what they do. On live data that raw win rate correlates at r ≈ 0.91 with the win probability that already held at the moment of purchase. Vibelock scores against a net-worth-standardized win rate instead, and fills each phase against a real soul budget rather than ranking items independently, because a build is a correlated set under a constraint — the top-N items scored separately don't compose into one.

• React 19
• TypeScript
• TanStack Query
• Vite
• Valibot