## Welcome to the Gas Tank in Builder
Sequence wallets are controlled by smart contracts, enabling transaction fees to be abstracted away from users, a concept known in web3 as *gas*. With Sequence Builder's Gas Tank, you have a streamlined process for sponsoring gas for your users.
#### Why would I want to sponsor gas for my game?
Obtaining the crypto needed to cover fees poses a challenge for traditional gamers. Sponsoring gas on their behalf solves this problem.
Gas sponsoring in a web3 game provides seamless onboarding by removing gas fees, making transactions efficient and cost-effective for trading virtual assets in various in-game activities. This creates a more enjoyable gaming experience, fostering player loyalty and community engagement.
#### Sponsoring gas with the Gas Tank
Sponsoring gas on contracts is easy, and can be done either by searching and adding a contract or selecting a contract that you have already deployed on a project. Project owners also have control over the contracts they sponsor, allowing them to temporarily disable a sponsor for a specific contract by toggling it off and updating the sponsor settings.
There are a few options to fund sponsored gas, including a credit card checkout that makes paying for gas simple.
## Watch the Gas Tank in action in Builder
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## Related guides and walkthroughs
_will add walkthroughs and step-by-steps here_
Paying the fees on their behalf allows them to do transactions without having to acquire crypto in the first place
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