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Research and Development (video game mod)

video game mod for Half-Life 2: Episode Two

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 7, 2026
Entity authorityQ97642557 ↗
Source-derived summary

Research and Development is a free mod for the first-person shooter video game Half-Life 2: Episode Two. Developed by Matt Bortolino and released on July 17, 2009, it is a non-violent first-person puzzle video game, and has been compared to Portal. It received critical praise for its unique gameplay and high development quality.

Plot

The game does not have an overt story; the player wakes up as an unnamed character in a detailed but generic location, not knowing how they got there, and must start solving puzzles in order to escape.

Gameplay

The mod takes place in the Half-Life universe, but strips the player of their weapons, giving them only a Gravity Gun and antlion bait. The player must solve puzzles to traverse the levels, to the point where the game resembles a point-and-click adventure.

Development

Research and Development utilizes similar puzzles as those seen in between the shooter gameplay in Half-Life 2, but turns them into an entire game.

Reception

Alec Meer of Rock, Paper, Shotgun called the game "as must-play as an [Half-Life 2] mod gets", and stated that the game's non-combative player character is "in many ways more keeping with the mind-over-matter character we're often told Gordon Freeman is than the openly, incongruously murderous role he dons in Valve's games". Nick Breckon of Shacknews recommended the game, praising its "refreshing amount of original mechanics and crafted special effects". Tom Sykes of PC Gamer called the game one of the best Half-Life 2 single-player mods, saying that it is "surprising just how easily Half-Life 2's toolset translates" to the new focus of puzzles.

Editorial summary

“Research and Development (video game mod)” enters the record as video game mod for Half-Life 2: Episode Two. Crown Archives preserves that source wording while asking what Research, Development and video can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—2009—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Research, Development and video.
Editorial analysis

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“Research and Development (video game mod)” is worth following because a concise public description often conceals a longer documentary argument. Here, Research, Development and video provides the most credible route into that argument.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 7, 2026. The linked authority identifier is Q97642557. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2009.

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Source & attribution

This entry incorporates text from “Research and Development (video game mod)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.