https://fivem.net/About FiveM
FiveM is a dual-purpose (SP/MP) modification framework for the PC version of Grand Theft Auto V as released by Rockstar Games. FiveM is the original project both FiveReborn and MultiFive were based on. The current FiveM project originated from a merger between FiveReborn and a new development group called the CitizenFX Collective. On the multiplayer aspect, it differs from other similar modifications by utilizing the embedded game networking frameworks, building a modification framework around them, and expanding the game's functionality on an end-to-end level, directly binding to the RAGE Technology Group's base frameworks and Rockstar North's GTA codebase. Or in other words, FiveM enables you to play on dedicated servers with custom, modified experiences. FiveM does not interact with the Rockstar Online Services other than to validate your game copy the first time you launch it. This validation emulates the game's interaction, and can not be detected by Rockstar. As well is FiveM is not affiliated with or endorsed by Rockstar North, Take-Two Interactive or other rightsholders. And therefore any trademarks used belong to their respective owners. It also doesn't modify your game files at all, even when downloading server assets, so you don't have to do anything to move between FiveM or GTA:O.
The M in FiveM stands for modifications, not multiplayer. FiveM also allows you to modify the singleplayer experience, or well, it will in the future.
About the CitizenFX Collective
The CitizenFX Collective is an anonymous ad-hoc group of like-minded individuals striving for technical perfection in developing modifications for the RAGE-based Grand Theft Auto titles, and attempting to have a bit of fun along the way. The name derives from 'CitizenFX' which is a framework created by Bas Timmer (also known as NTAuthority). The members of the group primarily use chemical elements as their alias identities. Therefore members of the CitizenFX Collective are often referred to as 'elements'. The current member amount of the group is unknown. However a fair amount of these alias identities are fairly active in use, therefore there is a slight possibility that the group is quite large. One unconfirmed argument for their anonymity is that the group fears legal actions by Take-Two Interactive the parent company of Rockstar Games.
The FiveM & CitizenFX Collective logo's
The official logo appears to be an uppercase lambda Λ, the 11th letter of the Greek alphabet. Currently, the FiveM logo itself is often displayed in a variety of different colors. At this time there seems to be no specific corporate identity associated with FiveM and it is unclear who originally created the FiveM logo.
https://wiki.fivem.net/wiki/FiveM:AboutBueno, este hilo es para compartir servidores a los que juguéis ¿Utilizáis FiveM?