| DS | Knights in the Nightmare | 2009 | Strategy | Sting | Fourth episode of the Dept. Heaven game series; SRPG/bullet hell hybrid that should be played to be believed |
| GBA | Riviera: The Promised Land | 2005 | Turn-Based | Sting | First in the Dept. Heaven series, with nonconventional dungeon exploration and item-based battles |
| GBA | Yggdra Union: We'll Never Fight Alone | 2006 | Strategy | Sting | Second Dept. Heaven game, an SRPG with card-based movement and skills as well as some real-time elements |
| PSP | Gungnir | 2012 | Strategy | Sting | Episode IX of the Dept. Heaven series, multiple endings, SRPG combat with a time system where points build up that can be used for attack strengthening or turn manipulation |
| PSP | Knights in the Nightmare | 2010 | Turn-Based | Sting | Very similar to DS version save for resolution and a smoother control scheme |
| PSP | Riviera: The Promised Land | 2007 | Turn-Based | Sting | Adds full voice acting, more CG images, and more events to the GBA version of the game |
| PSP | Yggdra Union: We'll Never Fight Alone | 2008 | Strategy | Sting | Adds new characters, redrawn sprites, increased unit capacity, more story sequences, and tweaks skills found in the original |
| Vita | Gungnir (DL only) | 2012 | Strategy | Sting | See PSP |
