🧗 Karma Climb

Higher or Lower — played with real Reddit upvotes.

Two real Reddit posts appear. You see how many upvotes the first one got. Did the next post get more or fewer? Tap Higher or Lower, build a run, and see how high you can climb. One wrong guess ends it.

Every community gets a fresh daily climb built from its own top posts, plus an endless mode, daily streaks, leaderboards, and a spoiler-free share card to challenge your friends.

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How to play

1. The top card shows a real post and its upvote count.
2. Guess whether the next post has more (⬆️ Higher) or fewer (⬇️ Lower) upvotes.
3. Keep going — every correct guess climbs higher. One miss ends the run.
4. Come back tomorrow for a new daily climb and grow your 🔥 streak.

Share your result with the spoiler-free grid:

Karma Climb · r/aww · #9
🟩🟩🟩🟩🟥
4/11 🧗

For moderators

Install Karma Climb on your subreddit and it drops in a game post automatically. The daily climb is built from your community's own top posts, so it's different in every subreddit and refreshes every day. You can add another post any time from the subreddit's mod menu → "Create a Karma Climb post."

There's nothing to moderate: the game only ever shows posts that are already public on Reddit, NSFW / spoiler / removed posts are filtered out (with an extra title safety filter on top), and players never submit any content of their own.

Privacy & data

Karma Climb stores only your Reddit username, your game scores/streaks, and the day's cached deck, all in Reddit's per-community Redis. It is used solely for in-app leaderboards and streaks, is never shared with third parties, and the app makes no external network calls at runtime. There is no personal data collected and no user-generated content. Questions: message the developer at Kobey Dev Services.

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How it works (for developers)

Built on Devvit Web — a React client in a Reddit iframe with a Hono/Node serverless backend, Redis for storage, and zero external network calls.

• Content comes from the Reddit Data API (reddit.getTopPosts) — the host subreddit's own top posts, supplemented from a curated SFW allowlist for small or brand-new communities. Posts are frozen (id, title, subreddit, score, thumbnail) into a deck that is baked once per subreddit per day and cached in Redis, so every player gets the identical daily climb (Wordle-style).
• Anti-cheat: a post's upvote score is never sent to the client until the player has committed a guess; run progress is tracked server-side and the guess endpoint validates the client's position against the server's.
• Daily rotation needs no scheduler — the deck is keyed by date and lazily baked on the day's first visit.
• Streaks, daily + all-time leaderboards (Redis sorted sets), and an endless mode round out the loop.

Project layout

src/server   Hono API (routes/api.ts) + core/ (deck, reddit, store, scoring,
             users, leaderboard) + data/allowlist.ts
src/client   React game (game.tsx, views/*, hooks/useClimb.ts, lib/api.ts)
src/shared   Types shared across client + server
test/        Pure-logic unit tests (deck builder, scoring, streaks, share grid)

Commands

• npm run dev — playtest live on a test subreddit
• npm run build — build client + server
• npm run type-check / npm run lint / npm test
• npm run launch — publish for review

Built by Kobey Dev Services.