Undertale

Undertale is a 2015 role-playing video game made by Toby Fox, an indie game developer. In the game, players control a human child who has fallen into the Underground, a large and out-of-the-way place under a mountain, separated from the rest of the world by a magic wall called the Barrier. The player meets many kinds of monsters as they try to return to the surface, mainly through the fighting system; the player takes turns selecting actions and avoiding attacks made of many bullets, and can choose to befriend or subdue monsters so that they won't get killed. The player's choices change many things in the game, including how characters act, and what kind of story it is.

Fox developed almost the whole game by himself. He wrote the words and made the music by himself, and only used a few pieces of extra art given to him by other artists. The game was inspired by the Mother and Mario & Luigi role-playing series, the "bullet hell" shooter series Touhou Project, and the British comedy show Mr. Bean. Undertale was originally meant to be two hours long and released in mid-2014, but creating the game took over three years, making the story longer and not making the game available until much later.

The game was released on Steam for Microsoft Windows and OS X on September 15, 2015. When it was released, the game was praised for its writing, themes, easy-to-learn fighting system, music, and original ideas; with praise directed towards its story, dialogue, and characters. The game sold over a million copies, and was nominated for many honors and awards, including Game of the Year from many gaming news sources, winning others from conventions including South by Southwest.

 Gameplay 
Undertale is a role-playing game that shows everything with a top down view. In the game, players play as a child and finish tasks in order to go forward in the story. Players explore an underground world of towns and areas, and must solve many puzzles on the way. The underground world is the place where monsters live now(In the intro of the game, it says monsters lost a war with the humans and were sealed by a magical spell), many of whom fight the player; players decide to fight, run away, act, or make friends with them.

When players meet enemies in either scripted events or random encounters, they enter a battle mode. During battles, players control a small red heart which represents their soul, and must avoid attacks shot by the monster(s) in a way much like a bullet hell shooter. Later the game, new types of gameplay are shown. These include blue-colored bullets that only hurt when the player is moving, or orange bullets that only hurt when staying still. The doge fight introduced the blue attacks(later referenced by Sans about "blue stop signs") and other enemies in Hotland introduce orange ones. Players can use the FIGHT option to attack, which involves timed button presses . Players can also use the ACT option to do many different actions, which are different for each enemy, usually for a peaceful resolution. Players can also use the ITEM option to eat food to heal, or to put on weapons or armor. Players can also use the MERCY option to spare enemies or run away. Monsters can be spared only if they have been beaten up enough to make them weak and unable to fight, or if they have been pleased by the right actions. In order for some boss battles to be completed without involving murder, the player must survive until the character they are facing has finished their dialogue. The game has many story branches and endings depending on whether players choose to murder or spare their enemies; and as such, it is possible to clear the game without murdering a single enemy. Players earn EXP and gold for killing monsters. 

Most monsters will talk with players during the battles(some cant talk, so normally for those the act menu shows physical actions instead of talking.), and the game will often tell the players what the monster's feelings and actions are. Enemy attacks can change based on how players interact with them: if the player chooses non-violent options, enemy attacks are easy, but they become harder if players choose violent options. The game uses many metafictional elements in both its gameplay and story. When players play in a boss battle more than once, the dialogue will change depending on actions from the times they played the battle before.

 Characters 
+CharacterRole in gameRoute where fight occursDescriptionFriskPlayer characterN/A The protagonist of the game
 Human child who fell into the underground
 Has the power of Determination, which allows them to reset and come back alive again after dyingFloweyFinal BossNeutral (as Photoshop Flowey) / Pacifist (as Asriel) Asriel, accidentally revived as a flower after his death
 Believes it's "kill or be killed" due to his death when he was a pacifist
 Has Determination
 Has no soul, so cannot feel any emotionTorielArea BossAll routes Used to be the Queen of Monsters and of the Underground, and Asgore's ex-wife
 Takes care of the player until Snowdin is reached
 Abandoned Asgore and moved to the Ruins after he declared any humans must dieNapstablookMini-bossNeutral and Pacifist Mettaton's cousin
 Quiet and depressed
 Informs the player that standard attacks cannot hurt ghosts
 Loves making music
Operates the Thundersnail mini-game in WaterfallSansFinal BossGenocide Papyrus' brother
 Short skeleton who enjoys telling puns
 Wears blue jacket and shorts
 Has knowledge of the concept of timelines
 Likes to drink ketchupPapyrusArea BossAll routes Sans' brother
 Wants to be part of the Royal Guard
 Friends with Undyne
 Enjoys cooking spaghettiUndyneArea BossGenocide (as Undyne the Undying) / Neutral and Pacifist (as Undyne) Head of the Royal Guard
 Determined to kill the player to get the last human soul
 Friends with Papyrus
 In love with Alphys
 Shows ability to generate Determination, which allows her to persevere after death before meltingAlphysActive participantN/A (Appears during some fights in Neutral and Pacifist) Current Royal Scientist
 Tried to find a way out of the Underground using extracted Determination
 In love with Undyne
 Built Mettaton to be her friend
 Low confidence; repeatedly refers to herself as "garbage"
 Loves animeMettatonArea BossGenocide (as Mettaton NEO) / Neutral and Pacifist (as Mettaton and Mettaton EX) Robot built by Alphys
 Originally created to kill humans, but turned to TV stardom
 Used to be a ghost
 TV star in the UndergroundMuffetMini-boss (or area boss by fans)All routesLeader of the spiders of the Underground
Runs a spider bake sale in Hotland and the Ruins
Added into the game because of a Kickstarter donatorAsgoreArea BossNeutral and Pacifist The King of Monsters and of the Underground
 Toriel's ex-husband
 Said that all humans who fell into the Underground must be killed to obtain their souls (seven human souls will break the Barrier)
 Doesn't actually want to kill the player, but is fated to fight them.AsrielFinal BossPacifist The son of Asgore and Toriel
 Killed by humans on the surface after taking Chara's body up
 Transforms from Flowey when he absorbs all human souls and monster soulsCharaExtra characterN/A The very first human that fell into the Underground, before Asgore declared war on humans
 Made a plan to kill themself so their soul could fuse with Asriel's, in order to kill 6 humans so they could free the monsters
 Returns after the player has completed a Genocide run; they ask for the player's soul and take it by force before deleting the worldW. D. GasterExtra characterN/AAppearance depends on in-game "fun values"
The royal scientist before Alphys
Has various follower characters (called "Goners") that reference him and his presence
Created the CORE, a power plant in Hotland
Died in an accident involving the CORE(This also is not Canon, and is a popular fan theory that  gaster created the CORE, but fell into it and was shattered across space time for an unknown reason)
Speaks in Wingdings
Doesn't have a canon Sprite, and Mysteryman and other similar sprites that represent him aren't technically him

 Deltarune 

In late October 2018, Toby fox hinted at the release of a new game called Deltarune, which was released on October 31, on his Twitter page. This new game is set in a similar world to Undertale and is familiar to previous players of Undertale. It follows the story of a human, a monster and a Darkner to bring balance to the world.

Today, only the first four chapters have been released; Fox is in the process of creating a development team and releasing the full game, with only one ending when it'll be complete.

Notes

 References 

Category:2015 video games
Category:Indie video games
Category:Linux games
Category:MacOS games
Category:Metafictional video games
Category:Nintendo Switch games
Category:PlayStation 4 games
Category:PlayStation Vita games
Category:Puzzle video games
Category:Role-playing video games
Category:Single-player video games
Category:Steam Greenlight games
Category:Video games developed in the United States
Category:Windows games
Category:Xbox One games