Session 6: Achievement Expansion - Added 10 new achievements (prestige, building milestones, click power, time-based)

dev-journal.md

@@ -12,7 +12,7 @@
 - Theme: "Cosmic Garden" - a space gardening idle game
 - Built core game engine with click harvesting, buildings, upgrades, achievements
 - Designed 12 buildings across 4 tiers (Star Sprout → Void Fern)
-- Added 15+ upgrades and 20 achievements
+- Added 15+ upgrades and 30 achievements
 - Implemented auto-save, offline progress, export/import
 - Built responsive dark-themed UI
 
@@ -131,3 +131,27 @@
 - Achievement expansion (prestige-related achievements)
 - Mobile touch optimizations
 - Consider adding more visual polish to the click button
+
+---
+
+### Session 6 - 2026-08-20 (Evening)
+**Status:** ✅ Achievement Expansion Added
+
+#### What was done:
+- Added 10 new achievements, bringing total from 20 to 30
+- New prestige achievements: Cosmic Rebirth (first prestige), Stellar Adaptation (5 prestiges), Cosmic Ascension (10 prestiges), Eternal Gardener (100 total essence), Quantum Growth (1,000 total essence)
+- New building milestone achievements: Void Weaver (25 Void Ferns), Supernova Growth (25 Supernova Seeds)
+- New click power achievements: Powerful Harvester (1,000 click power), Divine Touch (10,000 click power)
+- New time-based achievement: Dedicated Gardener (play for 1 hour total)
+- Updated achievement counter in UI from (0/20) to (0/30)
+- Updated Session 1 journal entry to reflect 30 achievements
+
+#### Files modified:
+- `js/achievements.js` - Added 10 new achievement definitions
+- `index.html` - Updated achievement count display
+- `dev-journal.md` - Updated session log and added Session 6 entry
+
+#### Next goals:
+- Mobile touch optimizations (tap feedback, responsive layout)
+- Consider adding more visual polish to the click button
+- Achievement progress tracking in stats panel