Deep Dungeon games in order

All 4 games of the Deep Dungeon series in the order they came out, from Deep Dungeon: Madō Senki (1986) to Deep Dungeon IV: Kuro no Yōjutsushi (1990).

1. 
   Deep Dungeon: Madō SenkiMSX, FDS
   19 Dec
2. 
   Yūshi no Monshō: Deep DungeonFDS, MSX
   1987
3. 
   Deep Dungeon III: Yūshi e no TabiNES · Hummingbird Soft
   13 May
4. 
   Deep Dungeon IV: Kuro no YōjutsushiNES · Hummingbird Soft
   6 Apr