Thunder Force games in order

All 6 games of the Thunder Force series in the order they came out, from Thunder Force (1983) to Thunder Force VI (2008).

1. 
   Thunder ForceX1, PC-88, FM-7 +2 · Technosoft
   Dec 1983
2. 
   Thunder Force IIGenesis · Technosoft
   6915 Jun
3. 
   Thunder Force IIIGenesis · Technosoft
   738 Jun
4. 
   Thunder Force IVGenesis, Switch, Saturn · Technosoft
   24 Jul
5. 
   Thunder Force VSaturn, PS1, PS3 +1 · Technosoft
   11 Jul
6. 
   Thunder Force VIPS2 · Sega
   30 Oct