it's pretty obvious
// ==UserScript==
// @name Open games from Steam website
// @namespace http://tampermonkey.net/
// @version 1.0
// @description it's pretty obvious
// @author instantpot
// @match https://steamcommunity.com/*
// @match https://store.steampowered.com/*
// @match https://help.steampowered.com/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=steamcommunity.com
// @grant none
// @license MIT
/*jshint esversion:6:*/
// ==/UserScript==
(function() {
'use strict';
let newlink = document.createElement('a');
newlink.setAttribute('class', 'menuitem supernav');
newlink.setAttribute('href', 'https://steamcommunity.com/id/ahypothermia/games/');
newlink.setAttribute('data-tooltip-type', 'selector');
newlink.setAttribute('data-tooltip-content', '.submenu_store');
newlink.innerHTML = ' GAMES ';
document.querySelectorAll('[class=supernav_container]')[0].appendChild(newlink);
if(document.location.href.includes('/games/')) {
document.querySelectorAll('[class="gameListRow"]').forEach(function(node) {
let link = node.querySelector('a').href.replace("https://steamcommunity.com/app/", "steam://rungameid/");
let newbutton = document.createElement('a');
newbutton.setAttribute('class', 'pullup_item');
newbutton.innerHTML = ' Open';
newbutton.setAttribute("style", "white-space: pre-wrap;");
newbutton.setAttribute('href', link);
node.querySelector('[class="bottom_controls"]').appendChild(newbutton);
});
}
})();