Tailscale
You can use Tailscale to share a Factorio multiplayer server with friends — all without opening a port or touching a firewall rule. See how in our latest video https://tailscale.com/blog/factorio-multiplayer-video
Video: Share a multiplayer Factorio server over Tailscale

With the recent release of Factorio’s Space Age expansion, we’ve been playing a lot of the base-building game — and that started with setting up a multiplayer server and sharing it into our friends’ tailnets.

Nov 1, 2024 at 8:49pmWeb
Show threadMahid SheikhNov 1, 2024
@tailscale
Show threadMarekNov 2, 2024
@tailscale By the way, I use Tailscale for Wesnoth - that also works great! And even if they were all on the same LAN, I think Tailscale is good, because with Tailscale the connection doesn't just drop when you reconnect to the WLAN.
Show threadSamuel 🌐Nov 2, 2024
@tailscale that's cool and all but I can also just set up a dedicated server on a cheap Hetzner VM