Clash of Clans is a freemium mobile strategy video game developed and published by Finnish game developer Supercell. The game was released for iOS platforms on August 2, 2012, and on Google Play for Android on October 7, 2013.
The game is set in a fantasy themed persistent world where the player is a chief of a village. Clash of Clans tasks players to build their own town using the resources gained from attacking other players through the game's fighting features. The main resources are gold, elixir and dark elixir. Players can conjoin to create clans, groups of up to fifty people who can then partake in Clan Wars together, donate and receive troops, and talk with each other.
Clash of Clans was released to positive reviews, garnering high ratings from many critics.
To earn and store gold and elixir, players must build gold mines and gold storages and elixir collectors and elixir storages, respectively. Elixir is used to train new troops, carry out research in the laboratory to upgrade troops, to re-load X-Bows (available from Town Hall 9), and to build and upgrade certain buildings, mostly pertaining to buildings used in attacking another player's base. Gold is used to build defensive buildings and to upgrade the town hall, which allows access to more buildings and higher levels for existing buildings. At Town Hall 7, dark elixir becomes available; this type of elixir is used to train and upgrade dark elixir troops and heroes, create dark spells (available from Town Hall 8), and fuel the Inferno Tower, a defensive building that is available only at Town Hall 10. The Eagle Artillery, a defensive building only available at Town Hall 11, is fueled by elixir. Town Hall 11 also provides access to a new hero - The Grand Warden. It is the only hero born out of elixir. To earn and store dark elixir, players must build dark elixir drills and dark elixir storages.
There are a number of buildings available to the player to defend their village, including cannons, mortars, bombs, teslas, traps, archer towers, wizard towers, inferno towers and eagle artilleries. Players can also build walls, which can be upgraded as a player's town hall level increases.
Troops and spells
The game has two kinds of barracks (barracks and dark barracks) and two kinds of spell factories (spell factory and dark spell factory). The barracks create troops using elixir (Barbarian, Archer, Giant, Goblin, Wall Breaker, Balloon, Wizard, Healer, Dragon, P.E.K.K.A, Baby Dragon, and Miner) whereas dark barracks create troops using dark elixir. (Minion, Hog Rider, Valkyrie, Golem, Witch, Lava Hound, and Bowler)
The spell factories follow the same pattern - the normal spell factory creates spells using elixir (Lightning Spell, Heal Spell, Rage Spell, Jump Spell, Freeze Spell, and Clone Spell), and the dark spell factory using dark elixir (Poison Spell, Earthquake Spell, Haste Spell and Skeleton Spell). All troops and spells have different properties. As the player progresses, several new troops and spells are able to be unlocked.
Aside from the game's resources (gold, elixir and dark elixir), the game also uses gems as a currency. Gems may be used primarily to finish the time that certain processes take, such as the remaining time of a building's or a troop's upgrade, or to instantly train an army. Additionally, they can be used to "boost" certain buildings, such as resource productions, heroes, and barracks. Gems may be acquired through in-app purchases, or they may be awarded for reaching certain milestones, completing achievements, or from clearing obstacles, such as trees, mushrooms or gem boxes, which spawn randomly on a player's base. After the May 2017 update, players can get gems from the gem mine in the Builder's Base at a very slow rate.
Clans and Clan Wars
Clans are groups of players who join together to support each other, either materially (donating troops) or verbally (giving advice). Players can join clans once they rebuild the special Clan Castle building early on. A major component of the gameplay of Clash of Clans is clans facing off against one another in the "clan wars". Clan leaders and co-leaders can begin wars against other clans. Each clan is then given one "preparation day" and one "war day." When a player attacks a member of the opposing clan, they receive stars based upon the amount of destruction they cause to the opponent's community. Each player is limited to two attacks per war, and the team with the most stars at the end of the war day is declared victorious. If the two clans' number of stars are equal, then the victor is the one that has a greater percent of destruction. Players receive bonus war loot if he/she use their attacks in the war. This loot is different on different bases and is decided by Supercell; the top base has the most war bonus loot and the last base has the least amount of bonus loot. If the clan wins the war, the bonus loot is fully delivered to the player but during a loss one-third of the loot is delivered to the player.  In the March 2016 update, 35v35 and 45v45 were removed. The available war sizes are 50v50, 40v40, 30v30, 25v25, 20v20, 15v15, 10v10 and 5v5. In the May 2016 update, Friendly Challenges were introduced to allow clanmates to compete amongst other clanmates, however these challenges do not provide loot or trophies and do not affect a player's army.
Builder's Base and PvP Battles
A replay of gameplay where a player is attacking another player's village in the builder base
A new update to the game on May 22, 2017 released a new game mode, known as the "Builder Base". Players can sail to a new island and create a new village, with a different set of buildings. In this mode, two players attack each other's bases simultaneously. The one with the most damage or getting more star gets the gold, elixir, and trophies. You can only win loot from attacks three times in 22 hours, but can continue attacking for trophies afterwards. The player can spend gems for skip the period of time. The progress will be much faster in this base with the introduction of Clock Tower (temporarily speeds the process of upgrading and production) and Gem Mine (spawns gems at a very slow rate). Currently, the highest builder hall is level 7, although supercell has plans to release level 8 in the near future.
Development and release
Jonas Collaros, one of the coders in the Clash of Clans team, speaks about the game's design at an event.
Clash of Clans was developed by Supercell, the company behind other popular mobile games like Hay Day. The game was released for iOS platforms on August 2, 2012, and on Google Play for Android on October 7, 2013.
The game is heavily promoted. In February 2015, Supercell released their Clash of Clans Super Bowl XLIX commercial, featuring Liam Neeson parodying his character from Taken. On February 2, Business Insider reported the ad as the 5th most watched Super Bowl ad, though on February 6, VentureBeat reported the ad was the most viewed of those that appeared on the Super Bowl. YouTube users later voted the advertisement the second best Super Bowl ad, behind Nissan's "With Dad" ad.
On September 23, 2015, Taiwanese singers JJ Lin and Jimmy Lin released the game's theme song "全面开战" ("Start a war totally" in English), which was sung in Mandarin.
On December 10, 2015, Clash of Clans had a massive update which changed key components of the game. After this update, players could no longer receive free shields from a town hall destruction, but instead at 30% intervals. This led to many casual players losing interest in the game, as it was difficult to progress without playing very often. After the release of Clash Royale, in January 2016, many players decided to start playing the game, which eventually lost many players in Clash of Clans.
The matchmaking system for "clan wars" is also regarded as a long-term problem.  In other words, "clan wars" can be unfair and the element of luck is needed to win- where a clan is usually matched up with either a far superior clan or a severely underpowered one, resulting in an unfair match. Once the war is matched, there is no way to cancel or quick-surrender and both clans must play for about two days.
Clash of Clans
GameRankings iOS: 80%
Metacritic iOS: 74/100
148 Apps 3.5/5 stars
Android Police 4.5/5
Gamezebo 4.5/5 stars
Pocket Gamer 9/10
Tom's Guide 3.5/5
Clash of Clans has received generally positive reviews. The iOS version holds an aggregate score of 74 out of 100 on Metacritic, and 80% on GameRankings.
Gamezebo's Leif Johnson was impressed, scoring the game 4.5 out of 5. Although he felt the gameplay was heavily skewed to encourage the player to purchase gems, he praised the addition of a single-player campaign. He concluded that "Clash of Clans is a simple game, but that's more of a strength than a weakness. It's simple enough to provide quick, painless matches on an iPhone in an idle moment, and there are enough different units to choose from in the battle mode to make playing against other players endlessly rewarding. Best of all, the option to fight against NPC goblins gives Clash of Clans a small edge over similar strategy games that rely almost entirely on player-versus-player combat."
Pocket Gamer's Peter Willington was equally impressed, scoring the game 9 out of 10 and giving it a "Gold Award". Reviewing the game several months after it was released for iOS devices, Willington praised the game for requiring real strategy to play. He wrote that the gameplay was built on the progression of "requiring more and more sophisticated units, asking you to strategise and really think about which elements you should focus on building within your camp." He concluded that "Clash of Clans is a superb game, freemium or otherwise, with more nuance than most give it credit for. That's why it's passed the test of time since its launch and still has an active community devotedly constructing elaborate fortresses in the hope of becoming invincible."
148App's Rob Rich scored the game 3.5 out of 5, writing "It's great to play an online freemium game that doesn't shy away from the single-player experience but also offers up some honest-to-goodness direct interaction, which is a very rare combination these days. It probably won't warm the hearts of any haters out there, but it does give genre fans something with a bit more action and strategy than they might be used to." Tom's Guide enjoyed the player interaction.
Modojo's John Bedford was less impressed, scoring the game 3 out of 5. He was critical of freemium gaming in general, writing "The novelty hasn't just worn off this particular style of greedy gaming, it's shriveled up and condensed itself into an infinitely dense singularity of self-loathing." Of the game itself, he concluded, "This is a game that follows in the footsteps of no small number of titles that have made feverish demands on our wallets in exchange for just a slightly thicker slice of the gameplay. It's possible you have an unending appetite for these micromanagement titles, in which case we recommend getting heartily stuck into Supercell's latest game. While Clash of Clans brings something new to accompany its competent but unexceptional empire gameplay, for most of us it'll be a case of too little, too late."
Clash of Clans became an App Store top 5 download between December 2012 and May 2013, and this success has been described as helping to usher in a new era in single player gaming on mobile devices. In 2013, Clash of Clans was the third-highest game in revenue generated on the App Store and number one on Google Play.
In February 2014 it was reported that the game was generating $654,000 in daily revenue for Supercell. In 2015, the game was the top grossing app on both the App Store and Google Play, with an estimated revenue of 1.5 million dollars per day.
Source : Wikipedia ...