Claim the welcome bonus and learn the wagering rules

Cosmo Casino Welcome Bonus

Cosmo Casino offers a 100% match bonus up to $500 on your first deposit, plus 100 free spins. The match applies to deposits from $20 and up, and the free spins are credited in one batch after the first deposit is confirmed.

What’s included: up to $500 in bonus funds (100% of your first deposit, capped at $500) and 100 free spins. The free spins are tied to Starburst, with a fixed stake of $0.10 per spin, and any winnings from the spins go into a bonus balance.

How To Claim

  1. Create a Cosmo Casino account and confirm your email.
  2. Go to the cashier and make a first deposit of $20 or more.
  3. Select the “Welcome Bonus” offer at checkout (or enter the code COSMO100 if the cashier shows a promo code field).
  4. Open Starburst to use the 100 free spins once they appear in your account.

Wagering Requirements And Time Limit

The bonus funds carry a 35x wagering requirement, calculated on the bonus amount only. You have 14 days from the moment the bonus is credited to meet the wagering; otherwise, the remaining bonus balance and free-spin winnings expire. Cosmo Casino counts slots at 100% toward wagering, while table games contribute 10%.

Current summary: the welcome deal is a first-deposit 100% match up to $500 with 100 fixed-value free spins, with 35x bonus wagering and a 14-day deadline.

Welcome Match: 100% Up To $300

Cosmo Casino matches your first deposit 1:1 up to $300. The bonus credits to your account after the deposit clears.

  • Deposit: Minimum $20. Match rate 100% up to $300.
  • Wager: 35x bonus amount. Slots contribute 100%; table games contribute 10%.
  • Term: Bonus must be claimed within 7 days of registration and wagered within 14 days of being credited.

Weekend Reload: 50% Up To $150

Cosmo Casino adds a reload bonus on deposits made between Friday 00:00 and Sunday 23:59 (UTC). One reload bonus applies per weekend.

  • Deposit: Minimum $30. Match rate 50% up to $150.
  • Wager: 30x bonus amount. Maximum bet while wagering: $5 per spin/hand.
  • Term: Available each weekend; wagering period is 10 days from the time the bonus is credited.

Midweek Cashback: 10% Net Loss Return

Cosmo Casino returns 10% of your net losses from Monday to Wednesday as bonus credit, calculated once per week and paid on Thursday.

  • Deposit: Minimum $10 deposited during the cashback period to qualify.
  • Wager: 15x cashback amount. Slots contribute 100%; table games contribute 20%.
  • Term: Net losses count from Mon 00:00 to Wed 23:59 (UTC). Cashback is credited Thursday 12:00 (UTC) and must be wagered within 7 days.

Cosmo Casino Wagering Requirements Explained

A wagering requirement (wager) at Cosmo Casino is the total amount you must stake on eligible games before a bonus and its winnings can be withdrawn. It is calculated as bonus amount × wager multiplier, and each bet contributes only if the game and bet type qualify under the bonus terms.

  • Example 1 (slots, simple math): You claim a $50 bonus with a 35× wager. Your wagering target is $1,750 ($50 × 35). If slots count at 100% for that bonus, every $1 staked on eligible slots reduces the remaining target by $1.
  • Example 2 (mixed games, different contribution rates): You claim a $100 bonus with a 30× wager, so the target is $3,000. If eligible slots contribute 100% and blackjack contributes 10%, then a $20 slot bet counts as $20 toward the target, while a $20 blackjack bet counts as $2. After $500 wagered on slots and $400 wagered on blackjack, you complete $540 of the target ($500 + $40) and have $2,460 left.
At a glance

Cosmo Casino Bonus Comparison By Player Type

Player Type Main Bonus Offer Minimum Deposit Wagering & Time Limit Best Fit / Notes
First-time depositor (new account) Welcome match: 100% up to $300 + 30 free spins $20 35x (bonus + deposit); 7 days to clear Works for players who plan to play through a full rollover; free spins apply to a set slot.
Low-stakes weekend player Weekend reload: 50% up to $100 $25 25x bonus; 3 days to clear Short window and smaller cap keep it practical for light play; good for one or two sessions.
High-volume slot grinder Cashback: 10% weekly loss rebate up to $500 $0 (credited on losses) 5x cashback credit; credited every Monday, valid for 48 hours Lowest rollover in the table; tied to net losses, not deposits, so it tracks volume more than timing.