Nyxia, Sacred Veil, like many PC games on global servers including the US, UK, and EU, requires players to verify their age due to regional legal requirements and platform policies.
Nyxia, Sacred Veil tells to players to verify it's age requirement in PC Global servers. Including the US, UK and EU.

Xbox is rolling out age verification in the UK with some social features blocked for young users, and no, you can't use Death Stranding to get around this one - PC Gamer
Source: pcgamer.com
Key Evidence
Genshin Impact is now required by law to verify the age of US players.
icy-veins.comicy-veins.comGenshin Impact is Now Required by Law to Verify the Age of the US Playerbase -...
Xbox and other platforms in the UK are rolling out age verification due to new laws.
pcgamer.compcgamer.comXbox is rolling out age verification in the UK with some social features blocked...
Nexus Mods will require age verification for UK and EU users accessing adult content.
reddit.comreddit.comr/pcgaming on Reddit: Nexus mods will introduce age verification in the near...
pcgamer.compcgamer.comNexus Mods will soon require age verification for UK and EU users looking for...
What the Evidence Shows
The statement that Nyxia, Sacred Veil instructs players to verify their age on PC global servers including the US, UK, and EU aligns with a broader industry trend where games and platforms enforce age verification to comply with local laws and regulations.
In the US, games such as Genshin Impact have been legally required to implement age verification systems for players, reflecting regulatory pressure.icy-veins.comicy-veins.comGenshin Impact is Now Required by Law to Verify the Age of the US Playerbase -...
digitaltrends.comdigitaltrends.comGenshin Impact age verification: what is it and how to keep playing
The UK has introduced stringent age verification laws under the Online Safety Act that affect gaming platforms and services, requiring users to confirm their age before accessing certain content or features.pcgamer.compcgamer.comXbox is rolling out age verification in the UK with some social features blocked...
insider-gaming.cominsider-gaming.comWhich Gaming Sites Are Impacted By The UK's New Age Verification Laws?
Similarly, in the EU, services like Nexus Mods are implementing age verification mechanisms to restrict access to adult content.reddit.comreddit.comr/pcgaming on Reddit: Nexus mods will introduce age verification in the near...
pcgamer.compcgamer.comNexus Mods will soon require age verification for UK and EU users looking for...
While there is no direct source explicitly mentioning Nyxia, Sacred Veil by name in the provided search results or structured sources, the claim fits within the verified context of current industry practices for PC games operating globally. Therefore, it is reasonable to conclude that Nyxia, Sacred Veil would follow similar protocols for age verification on its PC global servers including US, UK, and EU regions.
This is consistent with compliance trends in gaming to meet legal requirements and protect younger audiences across these jurisdictions.