Games
When people think of the words “video games,” a variety of images and concepts could potentially come to mind, all of them (well, okay, most of them) valid. There are several completely different “genres” of video games, from the worldwide hits in the first person shooter genre such as Call of Duty, to the more intricate and hardcore games in the role playing game genre, such as Final Fantasy and The Elder Scrolls.
Most popular apps

Minecraft
Minecraft is a sandbox game that revolves around using building blocks to create anything you want. At night, monsters come out; make sure to build a shelter before that happens. The game also has multiplayer capabilities.

Minetest
Minetest is a near-infinite-world block sandbox game and a game engine, inspired by InfiniMiner, Minecraft, and the like.

Humble Bundle
Buy a bundle of games, you decide the price, and support charity in the process.

Portal
Portal™ is a puzzle game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative games on the horizon and will offer gamers hours of unique gameplay.

Lichess
Lichess is the most complete chess experience, with a simple interface that focuses on the game, a massive array of game related tools and a huge, worldwide community.

0 A.D.
0 A.D. is a free, open-source, cross-platform real-time strategy (RTS) game of ancient warfare. In short, it is a historically-based war/economy game that allows players to relive or rewrite the history of Western civilizations, focusing on the years between 500 B.C. and 500 A.D.

Epic Games Store
The Epic Games store is now open, featuring games from other developers. Epic's goal is to bring you great games, and to give game developers a better deal: they receive 88% of the money you spend, versus only 70% elsewhere.

Half-Life
Half-Life is a science fiction first-person shooter video game developed by Valve Software, the company's debut product and the first in the Half-Life series.