Whether temporary email is practical for gaming depends on how much you value the account and whether the platform permits disposable addresses.
For an account containing purchases, achievements, saved progress, or social connections, use a lasting address. You may need email access for recovery, security checks, purchase records, or support.
Even a free account can become valuable after you invest time in it. Choosing an expiring inbox during registration may cause problems later.
Do not use temporary addresses to bypass bans, registration limits, or promotional restrictions.
If you are testing your own game’s registration process, use an authorized testing setup. For your personal gaming account, prioritize continuity and make sure the associated inbox remains under your control.