The Create account button is greyed out

The Create account button stays disabled until an anti-spam check called Turnstile finishes running. It is a small box near the bottom of the form, and it usually completes in a second or two without you doing anything.

If it never finishes, use Discord instead

This is the short way out, and it works even when the check is completely broken for you: press Discord under the form. Signing in with Discord creates your account and never touches the security check. Battle.net does the same.

You end up with an ordinary account either way, and you can set a password afterwards from Settings if you would rather have one.

Why it happens

Turnstile has to load a script from challenges.cloudflare.com. If that request is blocked, the check never completes and the button never unlocks. The three usual causes, in the order worth trying:

• A content blocker. uBlock Origin, Privacy Badger, Brave Shields and most VPN browser extensions can block it. Turn the blocker off for techplay.gg and reload the page.
• Third-party cookies switched off. Safari and Firefox in strict mode block them by default. Allow them for techplay.gg, or try the same page in a private window of a different browser.
• A VPN, or a network that filters DNS. Some exit addresses and some office or school networks are rated badly enough that the check refuses to complete, or never loads at all.

The page will tell you

If the check has not appeared after fifteen seconds, the form says so and offers a reload button, rather than leaving you in front of a dead button with no explanation. If you see nothing at all where the check should be, that is the same fault — wait a few seconds and the message appears.

If the box shows an error

Reload the page. Turnstile issues a token that expires after a few minutes, so a form left open for a while has to run the check again.

Still stuck

Tell us which browser you use, whether you have a blocker or a VPN running, and which country you are in. That is almost always enough to name the cause without a back and forth.