Underdog Promo Code YAHOOBONUS: Play Keep Your Million + 50% Deposit Match up to $1000 in Bonus Funds for NFL Sunday

Underdog is offering a promotional code YAHOOBONUS for new users to enjoy a 50% deposit match up to $1,000 in bonus funds and a free-to-play survival game called Keep Your Million. To claim the offer, users must sign up for Underdog, enter the promo code YAHOOBONUS, and complete verification. The minimum deposit required to unlock the match and activate the game is $10, with a cap of $2,000.

Players must be at least 18 years old, but the age requirement varies by state. The game is available in 40 states plus DC, and eligibility can be checked within the app. Keep Your Million is a bonus game where users start with a virtual pot of $1,000,000 and must predict whether a player's performance will be higher or lower in each round.

The winning selection carries over to the next round, with a maximum of 20 rounds. The winning balance after all rounds is awarded as Underdog bonus funds. The promo code terms apply only to new customers, and the bonus funds cannot be withdrawn.