In the world of locked-down Chromebooks and strict school firewalls, Classroom 6x and Classroom 30x have become legendary. These free, browser-based platforms deliver hundreds of unblocked games that load instantly, require zero downloads, and actually work during study hall. No logins, no ads (or very few), and — most importantly — no getting caught by the IT department.
This is the most complete, up-to-date (December 2025) guide you’ll find anywhere. We’ve tested every major mirror, checked safety reports, counted games, and asked students what actually works right now.
What Exactly Are Classroom 6x and 30x?
Classroom 6x – Launched around 2023–2024, it’s a massive collection of 200+ HTML5 games hosted on Google Sites and GitHub Pages. The “6x” refers to the original six main categories: action, adventure, puzzle, sports, strategy, and multiplayer.
Classroom 30x – The “bigger sibling” that appeared in 2024–2025 with 240+ games and a stronger focus on light educational content (think math snakes, geography quizzes, logic puzzles). The “30x” branding means “30 times more engaging than boring worksheets” (according to the community).
Both run entirely in your browser, need no installation, and are specifically built to bypass school restrictions.
| Feature | Classroom 6x | Classroom 30x |
|---|---|---|
| Launch Year | 2023–2024 | 2024–2025 |
| Number of Games | 200+ | 240+ |
| Main Focus | Pure entertainment | Fun + light learning |
| Best Device | Chromebook, PC, phone | Chromebook, PC, phone |
| Ads | Almost none | Almost none |
How They Actually Work (And Why Schools Can’t Fully Block Them)
- Games are hosted on Google Sites and GitHub Pages — domains almost every school whitelists.
- Everything is HTML5/WebGL — no Flash, no plugins, no executables.
- When one mirror gets blocked, the community instantly forks it to a new URL.
- Load time is usually under 5 seconds even on slow networks.
Classroom 6x Most Popular Games Right Now
| Category | Classroom 6x Favorites | Classroom 30x Favorites | Best For |
|---|---|---|---|
| Action / Shooting | 1v1.LOL, Slope, Time Shooter 2, Pixel Gun Survival | Ragdoll Archers, Time Shooter 3, Voxel Merge | 5–10 min adrenaline |
| Puzzle / Brain | 2048 Cupcakes, World’s Hardest Game, House of Hazards | Puzzle Legends, Cupcake 2048, Block Buster | Quiet thinking time |
| Sports | Retro Bowl, Basket Random, Tap-Tap Shots | Football Legends, Volley Random | Quick competitive fun |
| Survival / Horror | Five Nights at Freddy’s 2, They Are Coming | Backrooms, Nightmare Mode games | When you’re feeling brave |
| Multiplayer / .io | EvoWars.io, Yohoho.io, Paper.io 2 | Math Slither, GeoMaster, Hole.io clones | Playing with classmates |
Are They Actually Safe?
| Safety Aspect | Score (out of 10) | Details |
|---|---|---|
| Virus / Malware Risk | 9/10 | Hosted on GitHub & Google — code is public and scanned |
| Privacy | 10/10 | No accounts, no cookies, no tracking |
| Ads & Pop-ups | 7–8/10 | Official mirrors = almost zero ads. Random mirrors can have pop-ups |
| Age-Appropriate Content | 8/10 | Mostly PG. Avoid horror section if sensitive |
Rule of thumb: Only use mirrors that end in .github.io or sites.google.com — those are the real, safe ones.
The Entire “Classroom Nx” Family Compared
| Version | Game Count | Best For | Reliability |
|---|---|---|---|
| Classroom 6x | 200+ | Fast, classic fun | Very High |
| Classroom 15x / 20x | 300–350 | More simulation games | Medium |
| Classroom 30x | 240+ | Best balance of fun + learning | Very High |
| Classroom 60x / 76x | 400+ | Giant libraries | Hit or miss (many mirrors down) |
Quick FAQ – Everything Students Ask
- 100% free? Yes — no payments, no “premium” nonsense.
- Works on school Chromebook? Perfectly. That’s literally why they exist.
- Gets blocked eventually? Yes, but new mirrors appear the same day.
- Good for actual learning? 30x has math, geography, and logic games that teachers sometimes allow.
- Can teachers see I’m playing? Only if they’re looking over your shoulder. No logs sent to school.
Final Verdict
Classroom 6x and Classroom 30x aren’t just “unblocked game sites” — they’re one of the smartest student inventions of the decade. They turn boring free periods into quick dopamine hits that actually help you refocus for the next class.
Use them responsibly (5–15 minutes max), stick to the official GitHub/Google mirrors, and you’ll have instant entertainment that never gets old.