Browser RPG With Cross-Progression
Quick answer: True cross-progression requires server-side save data (not local browser cache). Top: VvW, BloodWars, OGame. All save to server; sign in from any device, your progression follows you. Local-only saves (most idle browser games) don't qualify.
What cross-progression means
Your progression saves server-side. Sign in from work PC, phone PWA, friend's tablet — same character, same gear, same level.
Top picks
VvW (Google OAuth + server saves), BloodWars (account-based), OGame (account-based, 20-year track record).
Browser cache vs server save
Local cache saves are device-bound. Clear browser data = lose progress. Server-side = safe across devices.
VvW cross-progression in detail
Account-bound. Sign in via username/password or Google OAuth. PWA install on each device for shortcut. Identical game state.
Frequently Asked Questions
Lose progress switching devices?
Only if you signed in as guest. Authenticated accounts persist.
Cloud-stream MMO same as cross-progression?
No — cloud-stream rents the game; cross-progression rents the device.