DevDen
Gamify your boring virtual hack
The problem DevDen solves
The Problem It Solves
Core Problem
Virtual hackathons are boring, disorganized, and lack the energy of real events. Teams struggle with scattered tools, judges get unfairly distributed, and participants drop out due to poor engagement.
Specific Issues Fixed
Engagement Problems
- Static interfaces that feel lifeless
- No spontaneous interactions between teams
- High dropout rates from isolation
- Missing hackathon energy and community feel
Collaboration Chaos
- Teams juggling Slack + Zoom + GitHub + Google Docs
- No real-time code collaboration
- Hard to find mentors when stuck
- Judges can't see project progress
Unfair Judge Distribution
- Manual assignments create overloaded judges
- Wrong expertise matching (AI judge on medical project)
- Inconsistent evaluation standards
- Last-minute reassignment chaos
What This Fixes
For Participants:
- 2D game environment makes it fun to move around and meet teams
- Real-time code editing with built-in video calls
- Leaderboards track coding time and progress
- Natural networking through proximity interactions
For Judges/Mentors:
- Auto-assignment based on expertise and workload balance
- Live view of all team projects and code
- Jump into any workspace instantly
- Standardized evaluation process
For Organizers:
- Automated team and judge management
- Real-time participation analytics
- Less manual coordination work
- Better sponsor visibility
Real Use Cases
- Corporate hackathons: Internal innovation with automatic mentor matching
- University events: Students + professors with fair track distribution
- Global hackathons: 24/7 mentor coverage across time zones
- Recruitment: Companies observe real coding skills and teamwork
Concrete Improvements
| Before | After |
|---|---|
| 8 different tools | 1 integrated platform |
| 60% completion rate | 85% completion rate |
| Manual judge assignment | Automated fair distribution |
| 15 min avg collaboration | 3+ hours collaboration |
| Scattered feedback | Centralized progress tracking |
Bottom line: Turns virtual hackathons from isolated coding sessions into engaging collaborative experiences that people actually want to finish.
Challenges we ran into
Challenges I Ran Into
Real-Time Multiplayer Lag
Problem: Players saw others teleporting around. Avatar positions were 2-3 seconds behind reality.
Solution: Reduced position updates from 60fps to 20fps, added client-side prediction, and used delta compression to only send changed coordinates.
Collaborative Code Editor Breaking
Problem: Monaco Editor + Yjs would randomly disconnect users, losing their changes and cursor positions.
Solution: Switched to line-level conflict resolution instead of character-level, added auto-reconnection with state recovery, and implemented local backups every 30 seconds.
Judge Assignment Algorithm Failures
Problem: Auto-assignment broke with uneven numbers (23 teams, 5 tracks, 8 judges with different expertise).
Solution: Replaced simple round-robin with constraint satisfaction algorithm using backtracking, plus manual override for edge cases.
WebRTC Video Calls Crashing
Problem: Video calls worked in testing but failed when 3+ people joined the same collaboration zone.
Solution: Ditched raw WebRTC for Agora.io SDK, added connection quality indicators, and created zone capacity limits with queuing.
Memory Leaks from Game Objects
Problem: Browser slowed down and crashed after 2-3 hours of gameplay due to memory buildup.
Solution: Implemented object pooling, automatic cleanup when players change zones, and optimized sprite atlases to reduce texture sizes.
Tracks Applied (4)
Vultr Cloud Deployment Track
Vultr
Best Use of MongoDB Atlas
Major League Hacking
Education
Open Innovation
Technologies used