SM64 Openworld Quest is a ROM hack made by TheGael95 & Mariocrash. It was released around 2016, and contains 70 Stars.
This hack modifies most of the vainilla levels to match an openworld environment. In addition to that, it includes a few custom levels.
Plot
Princess Toadstool sends Mario to come to her castle to save from Bowser. When Mario arrives, he meets the Lakitu Bros., whom are filming Luigi. They go inside the castle and hear a familiar voice telling him to get out of the castle. Toad informs him that Bowser and his henchmen invaded the castle and has kidnapped the princess and is holding everyone hostage inside the castle walls. He has also stolen the Power Stars and given them to his minions who are hiding in paintings spread all over the castle. Mario hops in the magical paintings and retrieves the Power Stars in order to defeat Bowser and save the Princess.
During the journey, Mario makes his way to more areas of the castle. When he finds out he has enough stars, he goes into Bowser's final level. Once he makes his way through the long course, Mario sees Bowser, and the two battle. When Mario defeats Bowser, he gives up and hands him a Giant Power Star, before he disappears. Mario grabs the star, and has been given the Wing Cap and flies away back to the castle.
As Mario's Wing Cap disappears, he uses the Giant Power Star to make Princess Peach appear. Peach wakes up and thanks Mario, by giving him a kiss, and the cake she had promised before.
Levels
| No. | Name | Replaced | Coins | Stars | Required Stars | Image | Access via |
|---|---|---|---|---|---|---|---|
| 1 | Bob-omb Mountain | Bob-omb Battlefield | 4 | 0 | Castle Grounds | ||
| 12 | Whomp's Sky Fortress | Whomp's Fortress | 4 | 30 | Castle Grounds | ||
| 2 | Mystic Lake | Jolly Roger Bay | 5 | 3 | Castle Courtyard | ||
| 11 | Cursed Peak | Cool, Cool Mountain | 5 | 8 | Above the Mountain | ||
| 9 | Shadow Temple | Big Boo's Haunt | 5 | 8 | Deep in the Cave | ||
| 8 | Inside the Igloo | Hazy Maze Cave | 2 | 8 | C07: Snowman Hills | ||
| 15 | Flaming Fire Field | Lethal Lava Land | 4 | 30 | Lava Station | ||
| 5 | Eyerok's Sand Temple | Shifting Sand Land | 4 | 3 | C03: Dusty Dusk Dunes | ||
| 6 | Mushroom Harbor | Dire, Dire Docks | 4 | 0 | Castle Grounds | ||
| 7 | Snowman Hills | Snowman's Land | 5 | 0 | C06: Mushroom Harbor | ||
| 13 | Wet-Dry City | Wet-Dry World | 5 | 30 | C12: Whomp's Sky Fortress | ||
| 3 | Dusty Dusk Dunes | Tall, Tall Mountain | 5 | 3 | C02: Mystic Lake | ||
| 10 | Giant Isle of Mystery | Tiny-Huge Island | 5 | 8 | Above the Mountain | ||
| 4 | Creepy Clock Tower | Tick Tock Clock | 2 | 3 | C03: Dusty Dusk Dunes | ||
| 14 | Endless Skies | Rainbow Ride | 5 | 30 | Above the Clouds |
Secret Levels
| Name | Replaced | Stars | Required Stars | Image | Access via |
|---|---|---|---|---|---|
| Bob-omb Cavern Slide | The Princess's Secret Slide | 2 | 0 | C01: Bob-omb Mountain | |
| Desert Cavern? | Cavern of the Metal Cap | 0 | 3 | C05: Eyerok's Sand Temple | |
| Deep in the Cave | Vanish Cap Under the Moat | 0 | 8 | C08: Inside the Igloo | |
| Above the Mountain | Bowser in the Dark World | 0 | 8 | Deep in the Cave | |
| C11: Cursed Peak | |||||
| Secret Aquarium | The Secret Aquarium | 0 | 30 | C13: Wet-Dry City | |
| Lava Station | Bowser in the Fire Sea | 0 | 30 | C14: Endless Skies | |
| C15: Flaming Fire Field | |||||
| The Cap Towers | Tower of the Wing Cap | 0 | 50 | Bob-omb Cavern Slide | |
| The Cap Towers | Tower of the Wing Cap | 0 | 69 | Inside Castle | |
| Bowser's Stratospheric Base | Bowser in the Sky | 1 | 50, 69 | The Cap Towers | |
| Above the Clouds | Wing Mario Over the Rainbow | 1 | 30 | C12: Whomp's Sky Fortress |
Music
| Used in | Song Sequence | Original Game |
|---|---|---|
| File Menu | The Time Machine | Mario & Luigi: Partners in Time |
| Overworld | Save Point | Kirby Super Star |
| Peach's Castle | Peach's Castle | Mario & Luigi: Partners in Time |
| Bob-omb Mountain | Athletic | New Super Mario Bros. |
| Mystic Lake | Noki Bay | Super Mario Sunshine |
| Dusty Dusk Dunes | Gerudo Desert | The Legend of Zelda: Twilight Princess |
| Dusty Dusk Dunes (Slide) | Underworld | Super Mario Bros. 2 |
| Creepy Clock Tower | Goron Mines | The Legend of Zelda: Twilight Princess |
| Eyerok's Sand Temple (Indoors) | Easton Kingdom | Super Mario Land |
| Eyerok's Sand Temple (Outdoors) | Gritzy Desert | Mario & Luigi: Partners in Time |
| The Sand Temple's Mysterious Cavern | Underground | Super Mario Bros. |
| Mushroom Harbor | Gelato Beach | Super Mario Sunshine |
| Snowman Hills | White Glacier | Bomberman 64 |
| Snowman Hills (Interior) | Hailfire Peaks (Ice Side) | Banjo-Kazooie |
| Inside the Igloo | Forsaken Fortress | The Legend of Zelda: The Wind Waker |
| Shadow Temple | Shadow Temple | The Legend of Zelda: Ocarina of Time |
| Giant Isle of Mystery | Toadwood Forest | Mario & Luigi: Partners in Time |
| Cursed Peak | Toad Town Ruins | Mario & Luigi: Partners in Time |
| Cursed Peak (Slide) | Castle Theme | New Super Mario Bros. |
| Whomp's Sky Fortress | Floating Castle | Yoshi's Safari |
| Wet-Dry City | Oil Ocean Zone | Sonic the Hedgehog 2 |
| Endless Skies | Rainbow Road | Super Mario Kart |
| Flaming Fire Field | Volcano | New Super Mario Bros. |
| Above the Mountain (Bowser's Road) | A Tense Moment | Super Mario Galaxy |
| Lava Station (Bowser's Road) | Grumble Volcano | Mario Kart Wii |
| Bowser's Stratospheric Base (Bowser's Road) | Strawberry Crisis!!! | Touhou 3: Phantasmagoria of Dim. Dream |
| Bowser Battle 1 | Angry Bowser | Paper Mario |
| Bowser Battle 2 | Boss - Macho Grubba | Paper Mario: The Thousand-Year Door |
| Bowser Battle 3 | Final Boss | Sonic the Hedgehog 3 & Knuckles |
| Secret Aquarium | Water Temple | The Legend of Zelda: Ocarina of Time |
| Above the Clouds | Main Theme | Super Mario 64: Legend of the Stars |
| Miniboss | Popple Battle | Mario & Luigi: Superstar Saga |
| Bob-omb Cavern Slide | The Great Cave Offensive - Mine Cart Ride | Kirby Super Star |
| Deep in the Cave | From Inside the Earthen Pipe | Super Mario RPG: Legend of the Seven Stars |
| The Cap Towers | Lava Reef Zone (Act 2) | Sonic & Knuckles |
| Wing/Vanish Cap/Shell | Powerful Mario (Arranged) | Super Mario 64 |
| Metal Cap | Metallic Mario (Arranged) | Super Mario 64 |