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🎮 1,875 challenge sites · one network

Pick a topic. Take the challenge.

A network of skill challenges across code, design, sports, climate, money and more. Learn it, prove it, win it.

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Featured

Featured challenges

TelecomChallenge.comGreen & Earth🌍
TelecomChallenge.com
Telecom
UsChallenge.comPower & Wildcards⚡
UsChallenge.com
Take the challenge — learn it, prove it, win it.
BtChallenge.comPower & Wildcards⚡
BtChallenge.com
Take the challenge — learn it, prove it, win it.
DataChallenge.netAI & Tech Arena💻
DataChallenge.net
Data — Code, hack, and innovate
WorkChallenge.comPower & Wildcards⚡
WorkChallenge.com
Take the challenge — learn it, prove it, win it.
MerchantChallenge.comPower & Wildcards⚡
MerchantChallenge.com
Take the challenge — learn it, prove it, win it.
PartnerChallenge.comCreative & Arts🎨
PartnerChallenge.com
Partner — Create and inspire
CandyChallenge.comPower & Wildcards⚡
CandyChallenge.com
Take the challenge — learn it, prove it, win it.
BirdChallenge.comGreen & Earth🌍
BirdChallenge.com
Bird — Protect our planet
FashionChallenge.netCreative & Arts🎨
FashionChallenge.net
Fashion — Create and inspire
WellnessChallenge.comHealth & Medical🏥
WellnessChallenge.com
Wellness — Improve health and wellness
HongkongChallenge.comPower & Wildcards⚡
HongkongChallenge.com
Take the challenge — learn it, prove it, win it.
BankChallenge.comPower & Wildcards⚡
BankChallenge.com
Take the challenge — learn it, prove it, win it.
StartupChallenge.comBusiness & Startup🚀
StartupChallenge.com
Startup — Build and launch ventures
StudioChallenge.comPower & Wildcards⚡
StudioChallenge.com
Take the challenge — learn it, prove it, win it.
PayChallenge.comPower & Wildcards⚡
PayChallenge.com
Take the challenge — learn it, prove it, win it.
AjaxChallenge.comSports & Competition🏆
AjaxChallenge.com
Ajax — Compete and conquer
ChannelChallenge.comPower & Wildcards⚡
ChannelChallenge.com
Take the challenge — learn it, prove it, win it.
eUroChallenge.comPower & Wildcards⚡
eUroChallenge.com
Take the challenge — learn it, prove it, win it.
TicketChallenge.comPower & Wildcards⚡
TicketChallenge.com
Take the challenge — learn it, prove it, win it.
RecruitChallenge.comPower & Wildcards⚡
RecruitChallenge.com
Take the challenge — learn it, prove it, win it.
FactChallenge.comEducation & Knowledge📚
FactChallenge.com
Fact — Learn, grow, and teach
AthleticChallenge.comFitness & Body💪
AthleticChallenge.com
Athletic — Push your physical limits
WatchChallenge.comPower & Wildcards⚡
WatchChallenge.com
Take the challenge — learn it, prove it, win it.
BerkeleyChallenge.comPower & Wildcards⚡
BerkeleyChallenge.com
Take the challenge — learn it, prove it, win it.
Griptape.comTechnology & Innovation⚙️
Griptape.comChallenge.com
Griptape — Build incredible applications with AI
StartupCompetition.comBusiness & Startup🚀
StartupCompetition.comChallenge.com
Startup — Build and launch ventures
CorpChallenge.comPower & Wildcards⚡
CorpChallenge.com
Take the challenge — learn it, prove it, win it.
Ravel Challenge.comCreative & Arts🎨
Ravel Challenge.com
Ravel — Create and inspire
HealthChallenge.netHealth & Medical🏥
HealthChallenge.net
Health — Improve health and wellness
MusicChallenge.comCreative & Arts🎨
MusicChallenge.com
Music — Create and inspire
RgbChallenge.comPower & Wildcards⚡
RgbChallenge.com
Take the challenge — learn it, prove it, win it.
Sponsors

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Brands back the network to reach an engaged, on-topic audience. Prizes, placements, measured attention.

🎟️
Prize sponsorFund a leaderboard prize pool
🏆
Zone sponsorOwn a whole topic zone
🌐
Network partnerPresence across the network
Bronze
$199/mo
Get seen on your category node
  • Logo + link in the sponsor row
  • Supported-by credit on the node
  • Monthly impressions report
Silver
$499/mo
Stand out with featured placement
  • Everything in Bronze
  • Featured placement above Bronze sponsors
  • Challenge prize co-branding
  • Newsletter mention
Gold
$999/mo
Own the node and the network
  • Everything in Silver
  • Top billing: Powered-by section naming
  • Dedicated challenge sponsorship
  • Leaderboard branding
Donor / In-Kind
In-kind / donate
Sponsor with product, materials, or services
  • Donate product, materials, or services instead of cash
  • Placement on the matching niche node (e.g. a garage merchant on GarageChallenge)
  • Featured as a challenge prize or materials provider for Act-level projects
  • Supported-by credit and link in the sponsor row

Become a sponsor

Cash or in-kind (donate product/materials). Tell us your category — we'll match you to the zones where your audience already plays.

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What’s gCred?

gCred — short for Green Credits — is what you earn for showing up and doing good. It’s a game reward and a measure of your engagement — not money, not an investment.

📚 Learn a verified fact +10
🏆 Win a challenge +25
🌱 Take real-world action +50

It levels you up, ranks you on the leaderboard, unlocks rewards and sponsor prizes, and routes a slice to the 2% impact pledge. Your gCred carries across every iChallenge you play.

Learn more at gcred.com →