[[quoteright:320:http://static.tvtropes.org/pmwiki/pub/images/ps_ps3_8425.gif]]

''PhantasyStarIII: Generations of Doom'' [[FakeOutOpening seems to be a radical departure]] from the first two ''PhantasyStar'' games at first; it doesn't even take place in the Algol system (although for good reason). It begins with the story of Rhys, a young prince of the Orakians, who is preparing to marry Maia, a girl from the rival Layans. When Maia is kidnapped, it sets events in motion that span generations. ''PSIII'' starts off as a classic MedievalEuropeanFantasy, but the appearances of androids and obviously high-tech "caves" quickly clue them in to the fact that things are not as they seem. The game features a unique twist: at the end of Rhys' adventure, he is given a choice of [[LoveTriangle two girls to marry]]. Depending on his choice, the game then ''continues'' through the eyes of the resulting child. This child's own story will then play out, again with a choice of whom to marry. This final child will play out the final act of the story.

Generally, this game is considered the weakest of the original tetralogy, largely because its ambitious design somewhat outstripped the capabilities of the hardware and developers of its day; today, with modern storage and development teams, a multi-generational epic might be possible, but in 1990, with a small team and on a cart with a data weight of less than a megabyte, doing the concept justice proved... difficult. The location shift from the previous two games (which, among other things, left the ending of ''[=PSII=]'' unaddressed) also caused a large deal of discontent. While still remembered as being one of the most ambitious titles of the 16-bit era (and one of the only to attempt a generational shift), ultimately its sibling titles are remembered more fondly.
----
!!Provides Examples Of:
* AbilityRequiredToProceed: Caverns connecting the worlds require special gemstones to travel through; some such caverns ''never'' get said gems, necessitating the use of Laya's Pendant to teleport through her temples. Even then, there's occasionally guards standing inside to prevent you from reaching the dais.
* ActionGirl: Sari of the second generation and Warrior!Kara of the third fit this trope.
* [[spoiler: AfterTheEnd: The game takes place on one of the spaceships that escaped [[EarthShatteringKaboom the destruction of Palm]] in PhantasyStarII. Unfortunately, the escape was mired by a [[GreatOffscreenWar cataclysmic war]] between the leaders of the ship that resulted in a FeudalFuture.]]
* AncestralWeapon: Orakio's black sword.
* ArrangedMarriage: Rhys was in one of these before the start of the game. He broke it off when he fell in love with the mysterious Maia.
* BadassCape: All your primary heroes [[MyFriendsAndZoidberg and Lyle]]. Aron gets an especially badass one, being the only protagonist with a unique set of sprites showing off his Dahlian attire.
* BadassMustache: Added to the portraits of Rhys, Lyle, Ayn and Nial to show they have aged up by the time of their sons' campaigns.
* BatmanGambit: Apparently everything you did in the first generation was part of a set up [[spoiler: by the people of Lashute. They wanted to restart the war, but this was impossible because of the ceasefire imposed by Orakio and Laya. They could have their second-in-commands restart the war, but both had been banished to the Alisa III's satellites, which were beyond the reach of any spaceships they had. Therefore they needed someone to bring them back into position using the satellite control system; so they kidnapped the Princess of Crille and placed her on a beach in Landen; which was a neighbor to Satera, whose royal family held the Moonstone, one of the keys necessary to make the satellite control system operate. Maia, the princess of Cille, was the cousin of Lyle, the prince of Shushoran whose royal family happened to have the Moon Tear, the other key needed to work the satellite control system. Then Lyle kidnapped Maia back and returned her to Cille, which just happened to be separated from Shushoran by a narrow strait which would turn into a land bridge if influenced by the two moons, if they were back in their original positions. Note that Lyle could have, at any time, turned into a dragon and flew the party to Cille, but instead they went with pretty much the most complicated solution of all, which is what the people of Lashute wanted. Wouldn't it have been easier for them to just kidnap Lena and Lyle (or blackmail them) and have them bring the satellites back for them?]]
* BattleCouple: This is an option throughout the game; a minimum of one of your choices for a bride will have participated in your quest, making them a possible BattleCouple. ''Both'' of Ayn's potential brides fight alongside him, making this mandatory for him.
* ChangingOfTheGuard: Each generation starts with a new protagonist, son of the previous generation's hero.
* ChestMonster: [[spoiler:Dark Force is hiding in one.]]
* TheComputerIsACheatingBastard / MyRulesAreNotYourRules: The Tsu and Zan spells have different properties than normal in this game -- Zan targets all enemies within a row (front or back), and Tsu targets enemies within a column (left or right). However, when used on the ''player's'' party, they both target everybody, no exceptions. Only Gra and Foi function like they're supposed to for both sides (targeting all and only one subject, respectively).
* CultOfPersonality: Orakio and Laya are revered by their respective factions as near deities.
* DamselInDistress: Maia starts the whole game thanks to what ''appears'' to be this trope. It's complicated.
** Also Alair in Nial's quest, and Thea in Ayn's. Arguably Lena in Rhys', depending on how serious Lyle was about holding her.
* DefeatMeansFriendship: Lyle in Rhys' quest. He temporarily leaves your party to challenge you to a DuelBoss battle at Shusoran castle before you can go on to defeat the King of Cille to complete your mission. Another example is Sari in Ayn's campaign.
** [[spoiler:All of Cille (in Rhys' time) and Dahlia (in Nial's era) are beaten into friendship.]]
* DefectorFromDecadence: Ryan, a Layan rebel leader who opposes Lune.
* DualWielding: It's possible for characters to dual wield [[KnifeNut knives]], [[AutomaticCrossbows needlers]], [[PrecisionGuidedBoomerang slicers]], [[WolverineClaws claws]], even [[CarryABigStick staves]].
* EldritchAbomination: Virtually a given in a Phantasy Star game.
* EquivalentExchange: Techniques are customizable. Grouped into four sets (Healing, Melee, Time, and Order), one technique's effectiveness can be boosted at the expense of another. It's actually a fairly robust system that allows for some helpful character specialization.
* EverythingsBetterWithPrincesses: All of the female characters are either princesses, a sister to a goddess, or related to a legendary hero.
* EvolvingMusic: The [[https://www.youtube.com/watch?v=xyUIFtxxbF4 overworld theme]] grows more complex and triumphant as you recruit characters into your party. You'll never hear its solo and two-person variations past the first generation, as Mieu and Wren always accompany the hero permanently.
** The background music in battles will also change depending on your status. If you're party is in normal condition against enemies appropriate to your current level, you get the normal battle theme. If you're up against enemies above your current level, if your party is in bad shape, or if you're ambushed, the music is dark and sinister. If you're up against weaker enemies or if you're close to winning, the music is upbeat and cheerful.
* FacialMarkings: Laya has a bright red dot in the middle of her forehead. Adan and Gwyn inherent smaller ones.
* FakeOutOpening: Appears completely unconnected to the other games in the tetralogy ''at first''.
* FantasticRacism: A plot point. Orakians and Layans have been at war for over a thousand years, the former utilizing cyborgs and raw strength to fight, the latter controlling monsters and able to use techniques.
* FeudalFuture: In spades, though most people aren't aware of it.
* ForWantOfANail: Lune's daughter Kara. [[spoiler: If Nial is your second-generation protagonist, his and Lune's final battle will help Lune come to terms with the war finally being over, and a Kara will be born that grows up to be a rather sweet princess who specializes in healing. If you went with Ayn's route, this fight obviously never occurred, and Lune will have had to come to terms with the war on his own; in the meantime, a Kara will have been born that has grown up as more of an embittered warrior, specializing in attack spells and sporting a much more armored appearance.]]
* FourStarBadass: Siren and Lune are both explicitly named as the generals under Orakio and Laya, respectively, and will pound you into fine paste if you make a single mistake during their boss fights.
* FunctionalMagic: The "Inherent Gift" type. Only those of Layan descent and cyborgs can use techniques; pureblood Orakians are limited to melee weapons. Since Megid figures into the plot, you ''will'' end up marrying at least one Layan by the third generation.
* GenerationShips: [[spoiler: The Alisa III is just one such model that escaped the destruction of Palma. Ayn or Nial discover this for themselves when they take off to Azura or Dahlia, respectively. Another ship, the Neo Palm, still exists as well; they're the only two left of the fleet that first left Palma.]]
* GenerationalSaga: Albeit a fairly shallow one, given how limited the available technology was.
* GlobalCurrency: That'll be 200 meseta!
* GoingDownWithTheShip: [[spoiler:Ayn's fate should he choose Thea.]]
* GoodOldRobot: Mieu and Wren, who Rhys recruits and who continue to serve his son and grandson as party members.
* GreatOffscreenWar: The Devastation War between Laya and Orakio creates the setting for the whole game.
* HumanPopsicle: This happens to [[spoiler:Laya]]. The wake-up time varies between generations. [[spoiler:She]] can even be woken up ''twice'' if Aron is your third-generation protagonist.
* LoveHurts: Rather obvious given the LoveTriangle bride choices, but in at least two circumstances, the bride not chosen is single the rest of her life.
** [[spoiler: Alair and Sari both remain single. Thea and Maia are never seen again. Lena marries someone else (producing Sari), and in all likelihood dies in Lune's attacks. Laya returns to stasis if you marry Alair, but later joins the third-generation party (or if you exploit an oversight by giving Laya's Bow to one of the cyborgs before completing the second generation, you don't need to get her at all... meaning she remains in stasis ''forever''). So yes, the one rejected tends to not get much of a HappyEnding.]]
* MagicKnight: Ayn and every third-generation protagonist, though how strong their magic will be depends on their ancestry.
* MechaMooks: Orakian warfare have depended on these for over a thousand years.
* MightyGlacier: Orakians are slower than Layans and don't level up as fast, plus they lack access to techniques. However, they make up for it by being ''very'' sturdy and strong.
* MultipleEndings: Has four third-generation protagonists.
* NiceJobBreakingItHero: Rhys' moving of Dahlia and Azura into their old positions [[spoiler: frees the greatest generals of the Devastation War to resume their fight]]. Also [[spoiler:the third-gen character's removal of Orakio's Sword.]]
* OminousFloatingCastle: Lashute, of course. In a subversion, Skyhaven is very friendly.
* OneSteveLimit: An aversion. There are two Layas in the game. One is only referenced in past tense and was the being who eventually headed Layan society; the other is her younger sister who is eventually roused from cryostasis. The Japanese version adds a third, who became Gwyn in the translation.
* PrecisionGuidedBoomerang: The weapons are called Slicers in this version. Lune, both Karas, and Thea all use this in combat.
* RobotGirl: The leotard-clad redhead Mieu and her older counterpart Miun.
* RoyalBlood: Only one party member can be considered a commoner. Everyone else is descended from Orakio, a princess, or an android.
* SequelDifficultyDrop: The game is far easier than the previous two titles in the series.
* ShouldersOfDoom: Orakian royalty have a tendency to go this route, although a higher degree of Layan blood causes them to be less fashionable
* SingleBiomePlanet: Aridia and Frigidia.
* StableTimeLoop: One ending shows how Dark Force [[spoiler:could have gone back in time to corrupt Earth, which may have lead to the Earthmen becoming the secret antagonists of ''PhantasyStarII'', and causing the events that resulted in Dark Force hitching a ride to Earth]].
** Of course, this all falls pretty firmly into {{fanon}} territory.
* StrongFamilyResemblance: Every generation's hero takes after his mother, inheriting her hair color, eyes, and some of her facial features. In Gwyn's case, she inherits her mother's coloring and looks, and a bit of her grandmother's facial structure. Crys is the lone exception to this, as his hair color doesn't match Sari's perfectly.
* SuspiciouslySimilarSubstitute: Gwyn fills the bow user role that Laya occupies in the other third-generation storylines, given that Adan and Gwyn's parents are Nial and Laya; she even shares the same sprite with just a slight difference in hair color.
** In the Japanese version, she was even ''named'' Laya.
* ThemeNaming: Most of the worlds: Landen, Aquatica, Aridia, and Frigidia refer to their climates, Elysium and Draconia are their map appearance, and Terminus is where the game ends.
* [[spoiler:TimeTravel: one of the endings.]]
* TransformingMecha: Wren has three alternate forms that allow the character to travel more quickly across the worlds.
* UntoUsASonAndDaughterAreBorn: Adan and Gwyn.
* UnwinnableByDesign: Do ''not'', under any circumstances, use an Escapipe to escape the castle dungeon at the beginning of the game. [[TheDevTeamThinksOfEverything The game will outright tell you that you need to reset now.]] Mercifully, this is right at the beginning of the game.
* VoluntaryShapeshifting: [[spoiler:Lyle is known as the Dragon Knight. He kidnapped Maia at the beginning of the game, and later on he uses his dragon form to transport Ayn and his party to Techna before passing away.]]
* WarriorPrince: All of the male chief protagonists for all of the generations, plus Lyle.
* WitchSpecies: The descendants of Laya's clan are the only humans able to use techniques.
* YouGottaHaveBlueHair: You better believe it. The most egregious would be the famous use of a color best described as "electric laser limeade" as the hair color of ''five'' different characters.
----