SlimKing

SlimKing Bonuses

Our bonus menu covers both sides of the site: a staged casino package, a sports match, weekly cashback and two reload deals. All offers are shown in euros and most require a €20 deposit.

Casino Welcome Pack

The headline offer spreads 350% up to €10,000 and 500 free spins across your first four deposits, each needing at least €20. Free spins land in daily batches, and wagering runs at 30x deposit plus bonus and 30x on free spin winnings.

Max bet while wagering is €5, cash-out is capped at 3x the bonus, free spin winnings transfer up to €50 and the 10-day window is firm. The pack is for new customers only, must be taken before any bets are placed with the qualifying deposit, and cannot be combined with other offers.

Sport Welcome Bonus

Bettors who opt in during registration can claim a 100% match up to €200 on a first deposit of €20 or more. The bonus must be activated within 7 days and wagered 7x within 30 days on qualifying bets, with singles under 1.90 and multi selections at 1.51 or lower excluded, along with voided and cashed-out bets. Up to €1,000 can move to your real balance, and the offer runs from 21/04/2026 to 31/12/2026.

Casino Weekly Cashback

Each week we total your net losses and return 15% of them, up to €3,000.

Weekly Reload Bonus

Your first deposit of the week, made between Monday 00:00 and Thursday 23:59 UTC, earns 77% up to €700 plus 50 free spins on a selected slot. Wagering is 35x deposit plus bonus and 35x on spin winnings, with a €5 max bet, a 5x bonus cap on wins and only 3 days to finish. Free spins expire after 2 days, opt-in is needed each week and the deal cannot be mixed with others.

Weekend Reload Bonus

The weekend version offers a 50% match up to €700 plus 50 free spins, open to registered players topping up once the midweek window has closed.

VIP Programme

The programme runs across five levels. Benefits grow as you climb, taking in on-site promotions, personalised offers, cashback, higher withdrawal limits, 24/7 live chat access and a personal VIP manager.

Tournaments

Several races run at once, split into Slot Highlights, Spin Arena, Live Stakes and Sports, with casino prize pools of €1,100 to €2,500 and €1,500 on the sports side.

How to Claim Bonus

1. Register in three steps using an email or username, password, country and currency, then your name, address and phone.
2. Opt in to the casino or sports welcome offer during registration, or later from the My Bonus profile section.
3. Open the cashier, choose a payment method and deposit at least €20.
4. Activate the bonus in My Bonus if it is not credited at once.
5. Clear the wagering before the deadline, keeping every stake at or below €5.

SlimKing Games

The lobby splits into 11 categories, from classic fruit slots and Megaways to jackpots, game shows and bonus buy titles, with themes running through mythology, fishing and sevens. RTP and volatility differ by title and studio. A search bar, provider sidebar and category tabs keep 54 studios easy to filter. Favourites include 3 Super Hot Chillies, Supercharged Clovers: Hold and Win and Lucky Lady's Charm Deluxe, while recent additions cover Majestic Kong, MAXWIN Machine and Zeus Palace Coins.

SlimKing Payment Methods

Cards, bank transfers, a prepaid voucher and a wide crypto range all fund an account in euros. The minimum is €10 on every option, while bonuses need €20. Visa and Mastercard deposits arrive instantly with no fees.

How to Withdraw

1. Log in and open the cashier.
2. Switch to the withdrawal tab.
3. Select Bank Transfer and enter your amount.
4. Supply any Customer Due Diligence documents if asked.
5. Confirm the request and wait for the payout.

SlimKing Betting

The sportsbook sits beside the casino in the top navigation and covers pre-match, live and virtual markets. Football, tennis and basketball lead the list, with esports such as Dota 2 and Counter Strike sitting next to ice hockey, rugby and table tennis. Sports players get their own welcome match and tournament series, so both halves of the site can be used independently.

SlimKing Security

Account checks follow international anti-money laundering rules, and tools for stepping back are built in.

• Customer Due Diligence requested when a customer reaches the triggers set by international anti-money laundering regulation
• Players must be 18 or over, with age verification at registration
• Self-exclusion available for players who want to step back

SlimKing Support

A live chat widget sits on every page, with email for slower questions. Our team answers in 12 languages, matching the site's language selector.

SlimKing Mobile

There is no iOS or Android app, and none is needed, because the site is fully responsive on phones and tablets. A sticky login and register bar sits at the bottom of the screen, while the search bar, provider filter and category tabs scale down neatly.

SlimKing Login

1. Open SlimKing on desktop or mobile.
2. Tap the login button in the sticky bar.
3. Enter your login or username.
4. Type your password and confirm.
5. If the password is lost, request a reset by contacting support at support@merthyrleisuretrust.co.uk.