MAME4droid (short for MAME for Android) is an Android port version of the most popular arcade emulator MAME (only version 0.139u1) that was developed by Nicola Salmoria and the MAME team, made by David Valdeita (Seleuco). It is able to emulate all romsets supported by the original MAME of this version.

Warzone 2100 is a completely free and open-source RTS (real-time strategy) and RTT (real-time tactics) hybrid Red Alert like game for Windows, Mac and Linux platforms. It was developed by Pumpkin Studios (with C++) and published by Eidos Interactive in 1999.

Exanima is a dungeon exploration based hardcore action role-playing game, developed by Bare Mettle Entertainment from London. Players need to explore, fight and survive in a dark underworld (set in the Middle Ages of Europe), collect weapons and items, defeat enemies, solve puzzles, and finally find a way out of here. The overall game is very demanding on the player's controls and tactics, and clicking a mouse like in a traditional A-RPG won't get you very far.

Rigs of Rods is an entirely free, open-source and sandbox-style vehicle simulation program for Windows and Linux platforms. It simulates cars, trucks, airplanes, boats and everything in between, and uses soft-body physics system (based on mass-spring-damper model) to simulate the vehicle physics, mainly motion destruction and deformation of vehicles.

There are four classic arcade games in this post: Tumblepop, Diet Go Go, Joe & Mac Returns, and Jumping Pop. The first three are all the works of Data East from Japan, were successively released in 1991, 1992 and 1994. Among them, the Joe & Mac Returns is a hybrid work of Tumblepop and Joe & Mac of Data East. The last game is a highly imitative copy of Tumblepop, was produced by ESD from South Korea and released in 2001.