Research and Development (Half-Life 2: Episode Two)
| Research and Development | |
|---|---|
Screenshot showing a vehicle the player must build to complete the game | |
| Developer | Matt Bortolino |
| Engine | Source |
| Platform | Windows |
| Release | July 17, 2009 |
| Genre | Puzzle |
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.