---
# nuzlocke-tracker-lab1
title: Add version_groups table, share routes & boss battles across version groups
status: completed
type: feature
priority: normal
created_at: 2026-02-08T10:39:00Z
updated_at: 2026-02-08T10:46:43Z
---

Introduce version_groups table and re-parent routes and boss_battles from game_id to version_group_id. Add game_id to route_encounters for per-game encounter data.

## Checklist
- [x] Phase 1: Backend models (VersionGroup, Game, Route, RouteEncounter, BossBattle)
- [x] Phase 2: Alembic migration
- [x] Phase 3: Backend schemas
- [x] Phase 4: Backend API updates
- [x] Phase 5: Seed loader updates
- [x] Phase 6: Frontend type/API/hook updates
- [x] Verification: migration runs, TypeScript compiles