You may not use Cheats, automation software (bots), mods, hacks, or any other unauthorized third-party software, to modify or automate any Subscription Marketplace process.
5. THIRD PARTY CONTENT
In regard to all Subscriptions, Software, and related content that are not authored by Valve, Valve does not screen such third party content available on Steam or through other sources. Valve does not assume any responsibility or liability for such third party content. Some third party application Software is capable of being used by businesses for business purposes - however, you may only acquire such Software via Steam for private personal use.
连mod也是被禁止的，第五条的主要意思是非v社制作的第三方内容一律是不允许的，人家现在没管你就算了，那些用着盒子还理直气壮的真是不知道怎么想的