Phantasy Star Online Episode III C.A.R.D. Revolution's offline story quests follow a tier system that unlocks new quests to play as the story progresses. Main story quests have bold font and are guided by the white arrow. If these are completed before the optional quests on the same tier, those optional ones will become unplayable as the next tier unlocks.
If there are twin blades ⚔ next to a quest, this means that this mission will be a major boss battle.
If there is a movie camera 🎥 next to a quest, this means that a cutscene can be triggered provided that one of the displayed characters is dispatched to the quest. If there are no characters next to the camera, then all characters can trigger the cutscene.
Heroside: Hunters[]
There are 2 subplots in the Heroside story: the Homework subplot (denoted by a red background) and the Phantom Shop subplot (denoted by a blue background). Only one subplot can potentially be followed through to completion within a single playthrough.
| 1-1: Fossil Find 1 | ||||
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| 2-1: Haywire Pallet | ||||
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| 3-1: Sighting 1 |
3-2: Fossil Find 2 🎥
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| 4-1a: Homework Help | 4-1b: Phantom Shop 1 | 4-2: Chance Meeting | ||
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| 5-1: Sighting 2 | 5-2: Repair Work 1 | 5-3: Monument Watch 🎥 
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| 6-1: Called Out 🎥
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6-2: Challenge | 6-3: Magic Hands 1 | ||
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| 7-1: Development 1 | 7-2: Called Again | 7-3: Tower Check 🎥
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| 8-1: Clean-Up Job 🎥
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8-2: Fun Homework | 8-3: Magic Hands 2 | ||
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| 9-1: Development 2 | 9-2: A Brief Rest | 9-3: Truth Seeker 1 | ||
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| 10-1: Taken Away | 10-2: Great Rescue | 10-3: Delicious Dish 🎥
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| 11-1: Repair Work 2 | 11-2: Test of Power | 11-3: Phantom Shop 2 | ||
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| 12-1: No Reason | 12-2: Truth Seeker 2 | 12-3: Phantom Shop 3 🎥
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| 13-1: Guardian 1 ⚔ | ||||
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| 14-1: Guardian 2 | 14-2: Fish Rescue 🎥
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14-3: Development 3 | ||
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| 15-1: Guardian 3 | 15-2: Tough Partner | 15-3: Truth Seeker 3 | ||
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| 16-1a: Morgue Attack 1 ⚔ 🎥 | →
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16-1b: Morgue Attack 2 ⚔ | →
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16-1c: Morgue Attack 3 ⚔ 🎥 |
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| 17-1: Sighting 3 | 17-2: Info on Blitz | 17-3: Development 4 | ||
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| 18-1: Odor Encounter | 18-2: Emotions Clash | 18-3: Truth Seeker 4 🎥
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| 19-1: Bomb Threat | 19-2: Poachers 🎥
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19-3: Phantom Shop 4 | ||
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| 20-1: Dream Present | 20-2: Final Homework | 20-3: Ragol's Photo | ||
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| 21-1: Sighting 4 | ||||
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| 22-1: Great Ambition 1 ⚔ 🎥
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22-2: Great Ambition 2 ⚔ 🎥 |
Darkside: Arkz[]
There are 2 subplots in the Darkside story: the Ruin Smugglers subplot (denoted by a red background) and the Love Quest subplot (denoted by a blue background). Only one subplot can potentially be followed through to completion within a single playthrough.
| 1-1: First Battle | ||||
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| 2-1: Recon Duty 1 | ||||
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3-1a: Ruin Smugglers 🎥
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3-1b: Love Quest 1 | |||
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| 4-1: Lost Rappy | 4-2: Last Chance 1 🎥
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4-3: Nostalgic Spot | ||
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| 5-1: Unseen Enemy 1 | 5-2: Ino'lis Rocks | 5-3: Lazy Bum 1 | ||
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6-1: Research 1 🎥
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6-2: Perfect Ones | 6-3: Across Time 1 | ||
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| 7-1: First Strike | 7-2: Evaluation | 7-3: Love Quest 2 | ||
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| 8-1: Intruder! | 8-2: Recon Duty 2 🎥
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8-3: Research 2 | ||
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| 9-1: The One I Miss 🎥
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9-2: Cake of Dreams | 9-3: Love Quest 3 | ||
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| 10-1: Backup | 10-2: Jewel Fountain | 10-3: Last Chance 2 🎥
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| 11-1: Dark Shadow | 11-2: Song Request | 11-3: Lazy Bum 2 🎥
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| 12-1: Defense Net | 12-2: Flashbacks | 12-3: Miracle Water | ||
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| 13-1: Misty Temple ⚔ | ||||
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| 14-1: Unseen Enemy 2 | 14-2: Across Time 2 | 14-3: Lazy Bum 3 | ||
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| 15-1: Confirmation | 15-2: Looking Inward | 15-3: Last Chance 3 🎥
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| 16-1a: Morgue Raid 1 ⚔ 🎥 | →
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16-1b: Morgue Raid 2 ⚔ 🎥 | →
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16-1c: Morgue Raid 3 ⚔ 🎥 |
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| 17-1: Puzzle Solving 🎥
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17-2: Save the Rappy | 17-3: Research 3 | ||
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| 18-1: Flow of Power | 18-2: Love Letter | 18-3: Lazy Bum 4 🎥
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| 19-1: Unknown Lands | 19-2: The Real Me | 19-3: Across Time 3 🎥
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| 20-1: Toward Truth 1 | 20-2: Research 4 | 20-3: Enigmatic Mist | ||
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| 21-1: Toward Truth 2 | ||||
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| 22-1a: Final Battle 1 ⚔ 🎥
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22-1b: Final Battle 2 ⚔ 🎥 |
| Arkz | Break - Lura - Creinu - Endu - Hyze - KC - Reiz - Peko - Ohgun - Memoru - Rufina - Rio |
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| Hunters | Sil'fer - Orland - Relmitos - Ino'lis - Glustar - Guykild - Kranz - Kylria - Viviana - Teifu - Stella - Saligun |
| Antagonists | Leukon Knight - Castor - Pollux - Amplam Umbla |
| Locations | Ragol - Pioneer II - Mortis Fons - Lupus Silva - Tower of Caelum - Ravum Aedes Sacra - Molae Venti Morgue - Nebula Montana - Dolor Odor - Via Tubus - Unguis Lapis - Tener Sinus |