Can you play offline?

The directory is online. A port might still keep its files after you visit once. Those are different questions, and only one of them has a written yes.

The directory itself

On 4 Nov 2026 a direct request to ported2browser.com stopped on a page titled “Quick check · Ported2Browser” with the line “Checking that you’re human.” A list that starts with that check is not an offline app. A Portmaster reply about an iPad says it is unlikely to work, with a narrow maybe if you already opened a port, finished its download, and never left that tab. The same reply says they would not recommend it.

One port that writes the offline steps

The Vice City page by joncodeofficial says you import game.tar.gz once, about 668 MB. The page says the archive stays in the browser and is served from there, with no second download and no external server after that import. It also says the game can then run fully offline. I treat that as the project’s own instructions, linked from the Vice City guide. I am not copying the file size onto other GTA ports.

Sentences that sound like offline and are not

• Cricket 07. The current author page labels Solo offline against the computer or local controllers after importing your own game folder. The repository says those files live in browser-private storage. Both pages share an author, so this remains one primary source. See Cricket 07.
• GTA V at fiveplay.lol. On 4 Nov 2026 the page was counting game data in megabytes as it arrived. That is a download at launch, not a packed offline file.
• NFS Most Wanted at nfsmwonline.com. The site asks you to sign in and reach its servers. Phones and Firefox are pushed to a lite mode. A server login is the opposite of airplane mode.

I am not assigning an offline yes or no to the other 300 cards. Storage limits also differ by phone, and I have no single public figure for how many gigabytes a browser will keep. If a page fails halfway through a large download, use the not working steps.