All the technologies involved are organized in a “tree”, each technology being “connected” to one or more senior technicians. These senior technicians cannot be studied until they have completed all the lower-level technicians who connect directly to them (a process known as “unlocking”). So you can`t explore or gain technologies you haven`t unlocked – remember if you`re planning your technology development and what technologies you`re going to explore next! In Civilization V, the player leads a prehistoric civilization on a process map to the future and attempts to achieve one of the various conditions of victory through research, exploration, diplomacy, expansion, economic development, government and military conquest. The game is based on a brand new game engine with hexagonal tiles instead of the square tiles from previous games in the series.  Many elements of Civilization IV and its expansion packs were removed or modified, such as religion and espionage (although these were reintroduced in later expansions). The combat system was revamped by removing the stacking of military units and allowing cities to defend themselves by firing directly at nearby enemies.  In addition, the maps contain computer-controlled city-states and non-player characters available for trade, diplomacy, and conquest. The boundaries of a civilization also extend one tile at a time, favoring more productive tiles, and roads now have maintenance costs, making them much less common.  The game features community, modding, and multiplayer elements.
 It is available for download on Steam. Your civilization still begins in antiquity (unless you launch a custom game from a later era). To move on to the next era, you must either explore all the technologies from the previous era, or a single technology from the next era (after naturally unlocking it). The era in which you are getting to know yourself determines a number of other gameplay effects, such as for example. B the exact amount of culture and faith you receive from friendly city-states or social policies to which you have access. The search process is automatic and starts once you`ve created your capital – this means you`re constantly researching throughout the game.