Meaning:

“页” is short for “网页” (wǎngyè， literally means “web page”)， and “游” is short for “游戏” (yóuxì， literally means “game”). A term familiar to Chinese gamers, this refers to “browser games,” or “browser-based games.” These are computer games played online using just a web browser, sometimes with a common plug-in such as Java or Flash, without the necessity of downloading additional software to your computer. Browser games are designed to be played on a wide range of systems and devices. Some previously popular video games have been made into browser games, including Super Mario Bros and Pac-Man.

Example:

A: 你最近一份工作是干什么？

Nǐ zuìjìn yīfèn gōngzuò shì gàn shénme?

What was your last job?

B: 我上一份工作是在一家游戏公司设计新的页游产品。

Wǒ shàng yīfèn gōngzuò shì zài yījiā yóuxì gōngsī shèjì xīn de yèyóu chǎnpǐn。

My last job was to design new browser games for a games company.