Quake

A commercial add-on for Quake that adds new custom levels.

Humanity has lost control over Earth... Mutants that were created during previous conflicts have completely gotten out of control. Humans were forced to flee from the planet and watch from the Moon as their home was overrun by mutants and the ones who joined them. Now, the situation has become even more dire. Unorganized mutant actions have became organized – someone or something named "Shrak" has united them and started rebuilding Earth as a gigantic military base. You were sent back to Earth in order to perform reconnaissance on "Shrak" and its army and report back. Except that your ship has crashed and will not be flying you back anytime soon.

Aftershock for Quake, or simply Aftershock, is a commercial add-on for Quake developed by HeadGames Publishing, Inc. and published by GT Interactive. The add-on was released on November 10, 1996.

An semi-official 5th episode for Quake's 20th Anniversary developed by MachineGames of Wolfenstein New Order/New Colossus fame.

The Sword of Ares is a 1998 unlicensed total conversion for Quake. The game adds several features not available in vanilla Quakes, such as the ability to switch to a third-person view (which may be a bit buggy) and several selectable player skins. The Sword of Ares was made of free content but was distributed as shareware. It appears that the registered version (as a separate PAK file) was eventually made available by the author as a free download too, as it can be found on PlanetQuake mirrors alongside the shareware release. It is an unofficial commercial total conversion, whether it was licensed by id Software is unclear. The game retailed at $9.99 on their official website.

Two new episodes. Sixteen new levels. One way out. Your journey has led you down a path of no return. The acrid smell of death fills the air. And you know the road ahead may lead to your grave. But Quake, with his insidious, apocalyptic plans, must be crushed. If you fail, evil will shroud the universe for all eternity.

After defeating Shub-Niggurath, you arrive back at your home base on Earth, but it's not all blue skies and butterflies. Apparently, not all QUAKE forces have been subdued. Chaos ensues as you blast your way through the QUAKE minions and toward the infested gateway. Your only choice is to find the source of evil and shut it down. Without any hesitation, and with more guts than common sense, you leap into a portal of unknown destination.

Malice: 23rd Century Ultraconversion for Quake is a commercial mod of Quake. While requiring a full, registered version of Quake, it acts like a stand-alone game, employing its own characters, weapons, environments, rules, etc. The player assumes the role of a mercenary named Damage, who works for the boss of an underground crime syndicate, Colonel Bossman. Damage's main mission is to assassinate the head of Takahiro Industries, Bossman's main rival. To do that, he has to venture into his heavily protected headquarters, dealing with security guards and robots on his way.

Q!Zone is an authorized collection of maps for Quake by WizardWorks. It was released in 1996. It would later be bundled with both the original Quake and the Malice total conversion in the form of the Resurrection Pack for Quake compilation, distributed by GT Interactive in 1998. The new campaign is simply a collection of 26 new single-player levels sprawled over three new episodes, plus a series of deathmatch/capture the flag maps.

Abyss of Pandemonium - The Final Mission is a unofficial commercial partial conversion for Quake developed by Impel Development Team and published by Perfect Publishing. It was released on April 14, 1998. It includes 16 new levels (10 single player/6 death match), six new foes, four new weapons and 1 power-up.

You are humanity's last hope to stop the Strogg, a hostile alien race waging war against Earth. Play this military sci-fi FPS, now upgraded for modern platforms with improved visuals, new campaign content, online multiplayer/co-op, and more.

The fast, skill-based arena-style competition that turned the original Quake games into multiplayer legends is making a return with Quake Champions.

Dimension of the Machine is a brand new experience created by the MachineGames team. Continue your fight through brand new dimensions, figure out the secret to restarting the machine, and come face to face with an old foe.

Dr. Gordon Freeman doesn't speak, but he's got a helluva story to tell. This first-person roller-coaster initiated a new era in the history of action games by combining engrossing gameplay, upgraded graphics, ingenious level design and a revolutionary story that may not be all that it seems, told not through cutscenes, but through the visual environment.

Quake II is a first-person shooter video game developed by id Software and published by Activision. It is not a direct sequel to Quake, id decided to revert to an existing trademark when they were unable to agree on a new name that did not violate another company's trademark.

Quake 4 is a action shooter game which serves as the another chapter in the Quake series.

Welcome to the Arena, where high-ranking warriors are transformed into spineless mush. Abandoning every ounce of common sense and any trace of doubt, you lunge onto a stage of harrowing landscapes and veiled abysses. Your new environment rejects you with lava pits and atmospheric hazards as legions of foes surround you, testing the gut reaction that brought you here in the first place. Your new mantra: Fight or be finished.

Return to Castle Wolfenstein is a first-person shooter and a reboot of Wolfenstein 3D. The player's arsenal includes among others a Luger, MP 40 submachine gun, Mauser rifle with sniper scope, flamethrower, dynamite and grenades. The game also features a multiplayer component in which players are split into Axis and Allies sides with each a set of objectives to complete.

Doom II: Hell on Earth is a first-person shooter developed by id Software and released in 1994 as a sequel to the original Doom. The game continues the story, with players battling through Earth after it has been invaded by demonic forces. Gameplay remains similar to its predecessor, featuring fast-paced combat, maze-like levels, and an array of weapons, including the introduction of the powerful Super Shotgun. Doom II also adds new enemy types, such as the Arch-vile and the Mancubus, increasing the game's challenge. Initially released for MS-DOS, Doom II has since been ported to numerous platforms, becoming a cornerstone of the FPS genre.

Developed by id software, the studio that pioneered the first-person shooter genre and created multiplayer Deathmatch, Doom returns as a brutally fun and challenging modern-day shooter experience. Relentless demons, impossibly destructive guns, and fast, fluid movement provide the foundation for intense, first-person combat – whether you’re obliterating demon hordes through the depths of Hell in the single-player campaign, or competing against your friends in numerous multiplayer modes. Expand your gameplay experience using Doom SnapMap game editor to easily create, play, and share your content with the world.

Dying Light is a first-person, action survival horror game set in a vast and dangerous open world. During the day, players traverse an expansive urban environment overrun by a vicious outbreak, scavenging the world for supplies and crafting weapons to defend against the growing infected population. At night, the hunter becomes the hunted, as the infected become aggressive and more dangerous. Most frightening are the predators which only appear after sundown. Players must use everything in their power to survive until the morning’s first light.

Play the world's number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally with teammates to complete strategic missions. Take out enemy sites. Rescue hostages. Your role affects your team's success. Your team's success affects your role.

Waking up in a seemingly empty laboratory, the player is made to complete various physics-based puzzle challenges through numerous test chambers in order to test out the new Aperture Science Handheld Portal Device, without an explanation as to how, why or by whom.