07th Expansion is the developer of a few games with Steam trading cards, including:
- Higurashi When They Cry Hou - Ch.1 Onikakushi
- Higurashi When They Cry Hou - Ch.2 Watanagashi
- Higurashi When They Cry Hou - Ch.3 Tatarigoroshi
- Higurashi When They Cry Hou - Ch.4 Himatsubushi
- Higurashi When They Cry Hou - Ch.5 Meakashi
- Higurashi When They Cry Hou - Ch.6 Tsumihoroboshi
- Umineko When They Cry - Answer Arcs
- Umineko When They Cry - Question Arcs
- Umineko: Golden Fantasia