You'll receive $20 after signing up for Chalkboard with a referral from this page.
Chalkboard terms and conditions apply. Amounts may vary by region or promotion.

Promo code and sign-up bonus
You'll receive $20 after signing up for Chalkboard with a referral from this page.
Chalkboard terms and conditions apply. Amounts may vary by region or promotion.
Get$20
Choose a referral from this page, copy the code or open the link, then follow the signup flow on Chalkboard. Some programs apply the reward automatically from the link, while others ask you to enter the code during registration.
All codes listed here are referral or invitation codes shared by users. They are for referral rewards and signup benefits, not traditional checkout coupons.
Referral rewards can depend on your region, account status, campaign rules, and whether required first steps were completed. If a reward does not appear, check the terms inside Chalkboard and contact their support with the referral details.
Most referral programs are meant for new users or new accounts. Existing users may not be eligible unless Chalkboard specifically allows referral bonuses for current members.
When a brand has verified referral URL patterns, links that match those patterns show a verified badge. Codes and links are submitted by community members — always confirm the offer inside the brand's own signup flow.
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Underdog Sports is a US-based sports prediction and fantasy platform where users make picks, play season-long contests, and trade event contracts for real money. The site offers pick'em games, player- and team-based fantasy contests, and a Keep Your Million free-to-play survival promotion that gives eligible new users virtual funds to play through and potentially convert remaining balance into bonus cash; it also runs deposit-match promos, referral bonuses, and a prediction-market exchange regulated for event contracts.
PICKEM is a free-to-play social casino and ripping-packs platform where users open themed card packs, play casino-style games, and redeem or sell virtual items for prizes and rewards. The service combines collectible pack “rips” (sports and trading-card themes), slots, and table games into a single app available across most U.S. states where sweepstakes-style offerings are permitted. PICKEM is operated by Joyloop Inc. and positions itself as a sweepstakes-driven entertainment app offering Gold Coins (GC) and Sweepstakes Coins (SC), daily bonuses, VIP levels, and instant redeems. New players can try ripping packs and social casino games without purchase, and the site publishes terms, responsible-play rules, and geographic/age restrictions; specific promotions and redemptions are governed by sweepstakes rules and the platform’s terms and conditions.
CrownCards is an online platform where users buy digital pack openings that reveal real, professionally graded trading cards which they can keep, sell, or ship. CrownCards runs a pack‑opening system for collectible cards (Pokémon, sports, and more) in which every pull is a genuine, authenticated card that appears in your account vault. Packs show odds and top hits before purchase; pulled cards can be sold back for an instant buyback, shipped to you in a tamper‑evident graded slab, or kept in your collection. The site also provides rewards, daily spins, quests, ranks, and multiple payment and withdrawal options.
Winna is a crypto-first online casino and sportsbook that accepts Bitcoin and other cryptocurrencies for deposits and withdrawals, offers thousands of third‑party slots plus live dealer tables, and runs a set of provably-fair in‑house “Originals”. The platform is operated by GG Gaming LLC (headquartered in San José, Costa Rica) and focuses on fast crypto payments, instant-style rakeback and a VIP/rewards system rather than a single universal deposit welcome package. Game inventory, supported coins, verification and country eligibility are published on the site; check terms and the VIP/Rewards center for campaign details.
Let's GO is a mobile-first pack-opening platform where users buy digital packs, rip them, and reveal an actual physical or graded trading card delivered, vaulted, or sold instantly. The app focuses on authenticated Pokémon TCG and NBA cards kept in climate-controlled, insured storage; every reveal corresponds to a real card or slab held in the company’s vault. After a rip, users can sell back at the platform’s instant buyback rate, request insured shipping to their address, or leave cards in the free vault for later withdrawal or sale.
Playout is a free Android app that hands you a short, curated shelf of casual mobile games and pays you in coins you can redeem for gift cards or PayPal cash. The first coins land as soon as you open the app and start playing. Playout counts levels completed, awards streak and event bonuses, and converts coins into a cash balance every four hours. You install the listed games from Google Play, play for short sessions, and cash out via the Rewards tab. Accounts are device-tied, support is via in-app chat or [email protected], and the site emphasizes that the app contains no purchases or premium tiers.