As of now, there is no officially declared other installment of the "Project IGI" series. The indigenous Project IGI: I'm Going In was released in 2000, followed by its sequel IGI 2: Covert Strike in 2003. Both games are well-regarded for their tactical first-person shooter gameplay, emphasizing stealth and strategic planning on top of understandable action.
There have been rumors and occasional unofficial reports exceeding the years about a potential supplementary "Project IGI" game. For instance, in 2019, Toadman Interactive, a Swedish video game developer, announced that they were full of life upon a supplementary way in in the IGI series titled IGI: Origins, meant to be a prequel to the native game. This announcement generated considerable activity along with fans of the series.
I.G.I.: Origins is set during the frosty war and promises to preserve the tactical, stealth-based gameplay that defined the earlier games. The move ahead has been relatively quiet, as soon as periodic updates hinting at ongoing progress. Fans are eagerly awaiting more real information, such as a forgiveness date or detailed gameplay footage.
For the latest and most accurate information, it's advisable to follow qualified announcements from the game's developers and publishers. They will meet the expense of verified updates regarding the money up front status, forgiveness dates, and new indispensable details.