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A saved game (also sometimes called a game save, savegame, or savefile) is a piece of digitally stored information about the progress of a player in an electronic game (like a video game). This saved game can be reloaded later, so the player can continue where he or she had stopped. Players usually save games to prevent the loss of progress in the game (as might happen after a game over unless the game features permadeath, in which the save file is permanently deleted), especially when interrupting or ending a game session.
The use of saved games is very common in modern video games, particularly in role-playing video games, which are usually much too long to finish in a single session.
History and overview 
In early video games, there was no need for saving games, since these games usually had no actual plot to develop and were generally very short in length.
The relative complexity and inconvenience of storing game state information on early home computers (and the fact that early video game consoles had no non-volatile data storage) meant that initially game saves were represented as "passwords" (often strings of characters that encoded the game state) that players could write down and later input into the game when resuming.
On later cartridge-based console games, such as Kirby's Adventure and The Legend of Zelda, saved games were stored in battery-backed RAM on the game cartridge itself. In recent consoles, which use disc-based media for storing games, saved games are stored in other ways, such as by use of memory cards or internal hard drives on the game machine itself.
Some games do not save the player's progress towards completing the game, but rather high scores, custom settings, and other features. The first game to save the player's score was Taito's seminal 1978 shoot 'em up title Space Invaders.
Depending on the game, a player will have the ability to save the game either at any arbitrary point (usually when the game has been paused), after a specific task has been completed (such as at the end of a level), or at designated areas within the game known as save points.
The available ways to save a game affect gameplay, and can represent a practice of players or an explicit decision by designers to give the game a particular feel or alter its difficulty. 
Types of saved games 
Save points 
Save points are employed either when a game state is too complex to save at any given point or as a way to manage the difficulty level (e.g. a save point located before a difficult area, or one single save point before a set of difficult bosses rather than in between).
Checkpoints are locations in a video game (generally found in action games) where a player's status is saved and where the character respawns in the status saved by the checkpoint. A respawn is most often due to the death of the in-game character, but it can also be caused by the failure to meet an objective required to advance in the game. Some of these checkpoints are temporary and last until a new checkpoint is activated, the level is cleared, or the player loses all his/her lives. Most modern games, however, save the game to memory at these points, known as auto-saving. In some games, bonuses are awarded for passing checkpoints.
A common feature of games with long load times is to automatically save the game immediately after loading a new level (much like a checkpoint save), so that if the most recent manual save was very close to the end of the last level and the player then needs to reload, they do not have to spend time reloading the previous level, playing for a short period and then loading the new one again.
Save states 
A save state is a form of saved game in arcade and console emulators. A save state is generated when the emulator stores the contents of random-access memory of an emulated video game to disk. Save states are comparable to snapshots in hardware virtualization or Hibernation in computing.
Save states enable players to save their games even the emulated game or system does not support such a feature, although they are associated with cheating in video games. For instance, they may be used to circumvent saving and re-loading restrictions in video games that only support saving games in predefined intervals, or to unlock rewards that video games bestow upon skillful players who accomplish certain tasks without retrying. An associated concept is save state hacking, the practice of altering the saved states to alter the gameplay conditions, usually in favor of the player.
Some games that feature save points also use a variation of a saved games called a suspend save; like save states, these saves are the complete state of the game and allow the player to resume from an exact point. The aim of suspend save is to allow the gameplay to be temporarily interrupted; as such, suspend saves are erased when the player resumes the game. Savescumming, the act of capturing or reusing suspend saves, is a form of cheating.
Quick saving 
Quick saving and quick loading is a feature of computer games that allows the player to save or load the game with a single keystroke. These terms are used to differentiate between the traditional saving mechanism (See § Save anywhere where the player is required to invoke a menu or dialog box, issue save order, specify a title for the game being save and, if applicable, confirm whether an old saved game file with same title should be overwritten.) The term quick save may be used in video games that lack the traditional saving mechanism altogether.
The advantage of quick saving is its low burden: The player only has to press a button and, if applicable, wait a few seconds. The disadvantage is the automatic loss of the previously quick-saved state.
Save anywhere 
Another type of saved game is the concept of save anywhere, which allows the user to save at any point of the game at any time at any state of the game. The phrase "SAVE SAVE SAVE" is a reference to this feature and if often included in guides to these types of games to ensure that the user takes maximum advantage of this feature. This was chiefly a computer-only save game ability until the introduction of hard drives on console systems. There are modified versions of this, too. For example, the Nintendo Gamecube game Eternal Darkness uses a modified version of save anywhere, where the player can save almost anytime, for an unlimited number of times, but cannot save if an enemy is in the room.
Integration of saved game systems into gameplay 
Game designers often attempt to integrate the save points into the style of the game. Resident Evil represents save points with old fashioned typewriters (which require an ink ribbon item for each save), the Grand Theft Auto series used representations appropriate to the era of the setting: audio cassettes for the mid-1980s (Grand Theft Auto: Vice City), 3½-inch disks for the early-1990s (Grand Theft Auto: San Andreas) and compact discs for the late-1990s (Grand Theft Auto: Liberty City Stories). Many RPGs integrate the function of saving into the form of a journal that the characters can write into, or by auto-saving whenever the character stays at an inn or other resting place.
Square is notorious for commonly treating save points as legitimate objects within the game world. In Chrono Trigger, attempting to use fake save point in Magus's castle can actually bring the party into battle. In Final Fantasy VII, there is a save point at the Gold Saucer amusement park that forces the player to spend in-game currency to use it. There is also a phony save point serving as a distraction early on. If it is checked, the player misses out on a new character. In Final Fantasy VIII, the effects of a mysterious magical spell cause one save point to suddenly replicate into dozens of save points when touched. In Chrono Cross, Terranigma, and Xenogears, the character's recording of his memories in the game's various save points becomes a plot point later in the game.
In Donkey Kong Country 2: Diddy's Kong Quest, it costs two banana coins to use any save point more than once. Also, there is a puzzle in Alundra 2 that entails a cost in GP proportional to the number of times the game has been saved, penalizing frequent savers.
Perhaps one of the most famous integration of saved games in gameplay is Metal Gear Solid. Depending on how often the player saves, Psycho Mantis and Revolver Ocelot comment on how often they save, and also comment if save files from certain other Konami games are on the same memory card.
Another way saved games interact with each other is through passing along data to a particular game's sequels. A famous example of this is in Konami's own Suikoden series. By having and utilizing a save state from Suikoden's final save point that includes all 108 Stars of Destiny recruited, extra characters and plot elements are introduced in Suikoden II, and both previous games can stack with Suikoden III to show the player even more. Another notable example is the Ratchet & Clank series, in which having saves from previous entries to drastically reduce the price of previously purchased weapons that reappear in later games. Saves of non-related games can also interact with each other; for example, Super Smash Bros. Melee will reward the player with a Captain Olimar trophy when he or she boots the game with a Pikmin game save on the memory card. The character Rosalina becomes available on Mario Kart Wii if you have a Super Mario Galaxy save on your console. In Mass Effect 2, the player can import a save from Mass Effect which can alter the events that transpire in the game. Other franchises that allow transferring saves between games include the Fire Emblem, Shenmue and .hack series. In Silent Hill 3, if the player has a save from a complete play-through of Silent Hill 2 on the same PS2 memory card, the player can unlock hidden scenes that are similar to that of the previous game. Another example is in the Need For Speed series. For example, if the player begins a new career in Need For Speed: Most Wanted, and has a previous save game from Need For Speed: Underground 2, the player is rewarded an extra $10,000 in the beginning.
Save sharing 
For many years, sharing game saves among friends has been very common. From trading passwords to swapping memory cards, gamers have always been able to help each other out to unlock features in a game. With the growing popularity of the internet, many people upload their game saves to the World Wide Web to help out their online friends with some of the harder games out there. However, with the inclusion of a progress meter or "gamerscore" that tracks player progress in games for the Xbox 360, many players are beginning to view those who load other people's files onto their systems as "cheaters". Some games such as Grand Theft Auto IV prevent the use of saved games made by other users, although this can be circumvented. The Legend of Zelda Oracles games actually encourages this with a password swapping side quest that is available after finishing the main story.
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Saved games have generally been rare at arcades, but have found some use, notably in the Konami e-Amusement system, or by the use of PlayStation cards, as in Dance Dance Revolution. These generally use either a magnetic card to store the data, or network (internet) connection, or some combination thereof. Similarly, passwords have generally been rare at arcades, with occasional exceptions, such as Gauntlet Legends.
- Geddes, Ryan; Hatfield, Daemon (2007-12-10). "IGN's Top 10 Most Influential Games". IGN. Retrieved 2008-07-11.
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