Slots Bonus
Slots is the game of choice for clearing the William Hill Casino 1st Deposit Bonus of 100% your deposit amount up to £150, since wagers placed on Slot games carry a 100% weighting for the wagering requirement of 20 times the deposit and bonus combined. That is to say, $10 wagered counts for $10 cleared, which is of course a fair deal. It should be noted that William Hill bonuses are play-only and cannot be withdrawn.
This bonus applies to deposits between £35 and £150. The wagering requirement means that to get the maximum bonus amount, you have to deposit £150, then wager £150 plus the 100% bonus of £150 combined a total of 20 times, so (£150+£150) x 20 = £6000.
Video Poker Bonus
William Hill's First Deposit bonus can be cleared playing Video Poker. 20% of each wager on Video Poker counts towards the wagering requirement, which means the wagering requirement becomes effectively 100 times the bonus plus deposit amount. £30,000 need to be wagered in total to obtain the maximum bonus amount.
Blackjack Bonus
Blackjack is another option for clearing the 1st Deposit Bonus. Like for Video Poker, wagers placed on Blackjack carry a 20% weighting for the wagering requirement, which results in an effective wagering requirement of 100 times the bonus plus deposit amount. The max bonus amount requires a turnover of £30,000.
Roulette Bonus
You can play Roulette to meet the wagering requirement of the First Deposit Bonus at William Hill. Each wager on Roulette counts for 25% towards the wagering requirement, so the resulting effective wagering requirement is 80x, or a £24,000 turnover for the maximum bonus.
Other Promos
William Hill is constantly updating their offers of limited time special bonuses. For example, at the time of writing they are offering a 60% up to £500 redeposit bonus for 2nd-time depositors with a 15x wagering requirement, as well as an bonus of £50 for referring a friend to deposit at William Hill.
It should also be noted that most of William Hill's bonuses come with a 30 day expiration, unless otherwise noted on their website.