In his solo career, Gackt has put out 8 seperate albums and approximately 21 singles.

Albums
Mizerable Mini Album - 1999
1: Miserable
2: Story
3: Leeca
4: Lapis ~Prologue~

Mars - 2000
1: Ares
2: Asrun Dream
3: Emu ~For my Dear~
4: U+K
5: Vanilla
6: Freesia ~op. 1~
7:Freesia ~op. 2~
8: Illness Illusion
9: Mirror
10: Dears
11: Oasis
12: Kono daremo inai heya de

Rebirth - 2000
1: 4th...
2: Secret Garden
3: Maria
4: Uncontrol
5: Sekirei ~Seki - Rei~
6: Kalmia
7: Sayonara
8: Marmalade
9: Papa Lapped a Pap Lopped
10: Seven
11: Kimi no Tame ni Dekiru Koto

Moon - 2002
1: Noah
2: Luna
3: Wasurenai Kara
4: Soleil
5: Speed Master
6: Fragrance
7: Death Wish
8: Doomsday
9: Missing
10: Rain
11: Another World
12: Memories

Crescent - 2003
1: Dybbuk
2: Mind Forest
3: Tsuki no Uta
4: Kimi ga Matteiru Kara
5: Solitary
6: Hoshi no Suna
7: Lust For Blood
8: White Eyes
9: Kimi Ga Oikaketa Yume
10: Last Song
11: Birdcage
12: Orenji no Taiyou

the Sixth Day - 2004
1: Oasis
2: Seki-rey
3: Secret Garden
4: Kimi ga Oikaketa Yume
5: Wasurenai Kara
6: Tsuki no Uta
7: Mirror
8: Vanilla
9: Mizerable
10: LuNa
11: Last Song
12: Another World
13: Kimi no Tame ni Dekiru Koto
14: Saikai ~Story~

the Seventh Night - 2004
1: Kimi no tame ni dekiru koto
2: MIND FOREST
3: Kimi ga matteiru kara
4: Hoshi no suna
5: Kono dare mo inai heya de
6: U+K
7: PAPA LAPPED A PAP LOPPED
8: MIRROR
9: UNCERTAIN MEMORY
10: Kimi ga oikaketa yume
11: LAST SONG

Love Letter - 2005
1: Seiippai no Sayonara
2: Tea cup
3: etude (cains feel redux)
4: Arittake no Ai De ~LLV~
5: Peace
6: Kono Yoru ga Owaru Mae Ni
7: Kimi ni Aitakute
8: Dears ~LLV~
9: Sakura Nu
10: Love Letter

DIABOLOS - 2005
1: Misty
2: Farewell
3: Noesis
4: Ash
5: Metamorphoze
6: Dispar
7: Future
8: Black Stone
9: Storm
10: Road
11: Todokanai Ai to Shiitteitainoni Osaekirezuni Aishi Tsuzuketa

Singles
1st: Mizerable
2nd: Vanilla
3rd: Mirror
4th: Oasis + Uncertain Memories
5th: Sekirei ~Seki - ray~
6th: Saikai ~Story~ + Dears Live
7th: Secret Garden + Nine Spiral
8th: Kimi No Tame Ni Dekiru Koto + Cube
9th: Another World + Fragrance
10th: 12gatsu no Love Song
11th: Wasurenai Kara + Dooms Day
12th: 12gatsu no Love Song + December Love
13th: Kimi ga Oikaketa Yume + birdcage
14th: Lu:Na + Oasis
15th: Tsuki no Uta + Hoshi no Suna
16th: Last Song + Solitary
17th: 12gatsu no Love Song
18th: Kimi ni Aitakute + Peace
19th: 12gatsu no Love Song
20th: Arittake no Ai de + Kono Yo ga Owaru Mae ni
21st: BLACK STONE + ASH
22nd: Metamorphoze + Kimi Ga Matteiru Kara (REMIX)
23rd: Todokanai Ai to Shiitteitainoni Osaekirezuni Aishi Tsuzuketa + noesis
24th: REDEMPTION + LONGING