Shardvolt for schools

For teachers and network administrators · last updated 1 October 2026

This page exists so you can decide about Shardvolt without having to click through the whole site. If something here is not enough to make a decision, email support@shardvolt.com and a person will answer.

The honest summary

Shardvolt is a browser games site. It is entertainment, not an educational tool, and we are not going to pretend otherwise to get through a filter. If your policy is to block games during the school day, this site is squarely in that category and you should block it.

What this page is for is the schools that allow some games — at lunch, on a free period, in a club — and need to know whether this particular one is safe to allow. That is a fair question and the answers are below.

At a glance

What it is

A catalog of small browser games. Casual arcade and puzzle games — snake, match-three, pong, memory, block stacking, a top-down racer, a low-poly arena shooter.

Who makes them

Some are ours. Anyone can publish one, and developers earn a share of the ad revenue from time played.

Moderation

Every upload is reviewed by a person before it is visible. Nothing is public on upload. See our content standards.

Contact between users

None. No private messages, no friend requests, no voice or video. Two students cannot reach each other through this site.

Content rules

No gore, no sexual content, no gambling or simulated gambling, no horror, no drugs or alcohol. Cartoon conflict only.

Accounts

Optional. Every game is playable signed out. Email is optional even with an account, and is only used for password resets.

Data collected

A username and password hash if an account is made; which games were played and for how long. No real names, ages, locations or school details are requested. Full detail on the privacy page.

Payments

Only developers publishing a game ever pay anything, through Stripe. No card details reach our servers. Nothing on the site asks a player for money.

Ads

Google AdSense, under Google's policies. Ads sit outside the game frame, never inside it.

Downloads

None. Everything runs in the browser tab. Nothing is installed.

How games are sandboxed

Published games run inside a sandboxed iframe. A game cannot read your cookies, cannot see the player's account, and cannot navigate the page somewhere else. It can report a score and ask whether ads loaded; that is the whole interface.

A game cannot reach any other website. Game content is served under a Content-Security-Policy that permits scripts, images, media, fonts and network connections only from shardvolt.com. A game cannot load code from a CDN, call out to another server, or embed another site in a frame — the browser refuses. This is enforced by the browser, not by our review: it means a game cannot change what it does after it has been approved, and it means this site cannot be used to reach anything that is otherwise blocked on your network.

If you decide to allow it

The site is served entirely from one domain. To permit it you would allow:

shardvolt.com — the site and all game files, over HTTPS on 443.
fonts.googleapis.com and fonts.gstatic.com — typefaces. The site works without them, it just looks wrong.
pagead2.googlesyndication.com — AdSense. Blocking it leaves the site fully playable.

There are no other third-party hosts, no trackers beyond AdSense, no analytics provider, no CDN under a different name, and no websocket or non-standard port.

If you decide to block it

That is a reasonable call and we would rather you block the real site than an uncategorised unknown. If your filter currently has shardvolt.com as "uncategorised", we would genuinely prefer it rated accurately as a games site, whichever way that makes your filter behave.

Reporting a problem

If a student finds something on Shardvolt that breaks our standards, the report button on every game page works without an account. If you would rather raise it directly, email support@shardvolt.com and include the game name. We will take it down while we look.

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