Tyler McVicker, a source who often exposes Valve-related intelligence, revealed today that in the data mining of V News' new work "Aperture Technology Work", it is suspected that four unpublished games have been found: Citadel, some follow-up version of "Half-Life Alex", "Counter-Strike Global Offensive" Source 2 engine port version, and "Portal" drawing game.
Last year, there was gossip that Valve was developing Half-Life Citadel, and McVicker said that somehow there are a lot of "Citadel" code reviews in "Aperture Technology Work", which seems to be an RTS-FPS hybrid game with different factions, squads, and classes, including a single-player campaign and two main systems, using a top-down perspective.
The two main systems are "Abilities" and "Bots", which refer to items that can be held, such as weapons, upgrade items, secondary shooting methods, ammunition, grenades, passive buffs for players/teams/squads, and so on. Bots, on the other hand, refers to some kind of dynamic behavior system that can change how CPU units react to certain things during gameplay.
However, McVicker pointed out that the current findings are likely to be for other projects, and hopes that players will also maintain a cautious attitude, many things can not be guaranteed 100% authenticity before Valve official announcement.