Steam
Proves which Steam account you own. This is the account the server sees you play on.
Sign in through Steam ✓ Signed inAccount linking
Link your account
Sign in with both Steam and Discord and the bot gives you the Linked role. Doing both in one sitting is what proves the two accounts belong to the same person — neither one on its own says anything about the other.
Discord
Proves which Discord account you own. Only the identify scope is requested — nothing can be posted as you.
Complete both steps above first
Steam group required
You need to be in the Astro Rust Steam group. If you join now, come back and press Finish linking again.
Prefer to do it in game?
Type /claim in game for a code, then /link ASTRO-XXXXX in Discord. Same result, same table — use whichever you like.
Something stuck?
Open a ticket in Discord and an admin can link you by hand.