# Valheim Server Setup

Valheim dedicated: ports 2456–2458 UDP, password, won’t connect. Setup, version, crossplay.

**Quick answer:** Valheim dedicated: **2–4 GB RAM** for small groups, **4–8 GB** for larger worlds. Connection issues → open ports **2456–2458 UDP**.

## Common problems

    - **Server won't start** → [Setup](/en/gameserver/valheim/setup)
- **Lag with many builds** → [Performance](/en/gameserver/valheim/performance)

## Guides

    - [Set up Valheim server](/en/gameserver/valheim/setup)
- [Improve performance](/en/gameserver/valheim/performance)

## Related guides

    - [Gameserver hub](/en/gameserver)