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Sonic Robo Blast 2 (often abbreviated SRB2) is a platform game made within id Software's Doom engine. It is a free Sonic the Hedgehog fan game inspired by the original Sega Genesis games that "attempts to recreate their design in 3D", [ 5 ] and was the first fan-made 3D Sonic game created. [ 6 ]
In 2012, Valve announced Steam for Schools, a free function-limited version of the Steam client for schools. [144] It was part of Valve's initiative to support gamification of learning. It was released alongside free versions of Portal 2 and a standalone program called "Puzzle Maker" that allowed teachers and students to create and manipulate ...
Proton is developed by Valve in cooperation with developers from CodeWeavers. [2] It is a collection of software and libraries combined with a patched version of Wine to improve performance and compatibility with Windows games. Proton is designed for integration into the Steam client as "Steam Play". [3]
On a steam locomotive, the cutoff is controlled by the reversing gear. The point at which the inlet valve closes and stops the entry of steam into the cylinder from the boiler plays a crucial role in the control of a steam engine. Once the valve has closed, steam trapped in the cylinder expands adiabatically. The steam pressure drops as it expands.
The Mikado type was, in turn, ousted from the top-flight trains by larger freight locomotive wheel arrangements such as the 2-8-4, 2-10-2, 2-10-4 and articulated locomotives, but no successor type became ubiquitous and the Mike remained the most common road freight locomotive with most railroads until the end of steam. More than 14,000 were ...
MyHouse.wad (known also as MyHouse.pk3, or simply MyHouse) is a map for Doom II created by Steve Nelson. It is a subversive horror-thriller that revolves around a house that continues to change in shape, sometimes drastically and in a non-euclidean manner.
Panzer Dragoon II Zwei [a] is a 1996 rail shooter game for the Sega Saturn, developed and published by Sega.The second entry in the Panzer Dragoon series and a prequel to the original game, the story follows Lundi and his dragon companion, Lagi, as they pursue an airship of the Ancient Age.
Cross compound engine, with an expansion valve (top) on the high-pressure cylinder. An expansion valve is a device in steam engine valve gear that improves engine efficiency. It operates by closing off the supply of steam early, before the piston has travelled through its full stroke. This cut-off allows the steam to then expand within the ...