Twelve of the casinos we partner with need a code at sign-up to unlock the welcome; the rest credit the offer automatically, and typing a code you found on a forum won’t get you anything extra. Every code below was checked on the operator’s own registration page this month, with where it goes — the registration form, the cashier, or the promotions page — because entering it in the wrong place, or after your first deposit, is the commonest way to lose the offer.
Underneath the twelve you’ll find the brands that don’t use codes, so you’re not hunting for one that doesn’t exist, and a note on the three that changed this month.