Referral code vs promo code vs affiliate code
On Stake, these search terms often point to the same signup mechanic: an affiliate partner gives a new player a code or referral route. MainGame uses MAINGAMECODES. The important part is not the label—it is that the correct affiliate route/code is attached to the new account.
What MainGame currently attaches to the code
MainGame currently presents its tracked promotion as a $10 promotional balance with no deposit, 5× wagering and KYC Level 3, where available. That offer-specific information is maintained by MainGame rather than inferred from generic Stake bonus pages.
Did you forget the code at signup?
Stake’s public Affiliate Bonus and Welcome Offer help pages say a valid affiliate/welcome code can be entered for up to 24 hours after account creation. That is more useful than the common affiliate-site claim that the code is permanently lost the second registration finishes.
Why search results are confusing
Search results mix Stake.com codes with Stake.us and Stake.eu offers. They also mix generic rakeback with affiliate-specific promotions. MainGame Codes separates those topics so you can tell which code, domain and offer you are actually looking at.