Hiiro no Kakera games in order

All 9 games of the Hiiro no Kakera series in the order they came out, from Hiiro no Kakera (2006) to Shirahana no Ori: Hiiro no Kakera 4 - Shiki no Uta (2013).

1. 
   Hiiro no KakeraPS2, DS, PSP +4 · Otomate, Design Factory
   6 Jul
2. 
   Hiiro no Kakera: Ano Sora no Shita dePS2 · Otomate, Design Factory
   15 Feb
3. 
   Hisui no Shizuku: Hiiro no Kakera 2PS2, PSP, DS · Otomate, Design Factory
   9 Aug
4. 
   Soukoku no Kusabi: Hiiro no Kakera 3PS2, PSP, DS · Design Factory
   7 Aug
5. Hiiro no Kakera: Shin Tamayorihime DenshouPS2, PSP
   1 Oct
6. Hiiro no Kakera: Shin Tamayori Hime Denshou - Piece of FuturePSP · Otomate, Design Factory
   14 Jul
7. Soukoku no Kusabi: Hiiro no Kakera 3 - Asu e no TobiraPSP · Otomate, Design Factory
   31 May
8. 
   Shirahana no Ori: Hiiro no Kakera 4PSP, iOS, Android +1 · Otomate, Design Factory
   20 Sep
9. 
   Shirahana no Ori: Hiiro no Kakera 4 - Shiki no UtaPSP, iOS, Android +1 · Otomate, Design Factory
   5 Sep