RiddleCraft
Source code 
Key features
Daily riddle with streak and bonus XP
5 categories: Wordplay, Logic, Lateral Thinking, Math, Visual
XP, levels and daily streaks system
12 unlockable achievements
Global and daily leaderboard
Progressive hints with XP penalty
User profile with full statistics
Admin panel with metrics
Description
RiddleCraft is an interactive daily riddle and puzzle platform built with Angular 22 and NestJS 11. Users can solve riddles across 5 categories (Wordplay, Logic, Lateral Thinking, Math, Visual), earn XP and level up, maintain daily streaks, unlock achievements, and compete on the global and daily leaderboards. Features include progressive hint system, solve timer, user profile with stats, and admin panel for content management. Pre-seeded with 8 riddles, 12 achievements, and 2 demo users.
Technologies used
Angular 22 
NestJS 11 
TypeScript 