Doubt/ダウト Crossovers
the reflection of despair is revenge by reminiscent-afterthought
One Rei invites another Rei to witness the game of Rabbit Doubt...except the script doesn't go quite like that.
Crossover - Digimon & Doubt/ダウト - Rated: T - English - Chapters: 1 - Words: 2,797 - Published: 12/2/2016 - Rei S., Rei H. - Complete
Eyes that See, Eyes that Tell by reminiscent-afterthought reviews
She sought him and he became a wolf of hers without a fuss.
Crossover - Yu-Gi-Oh GX & Doubt/ダウト - Rated: T - English - Chapters: 1 - Words: 1,612 - Reviews: 1 - Published: 10/9/2015 - T. Saiō, Rei H. - Complete
Tribunal by 66sixx
Thirteen gamblers have each been given one last chance to survive. They have been accused of cheating and faced three trials. They have each beaten the first two and are one step away from freedom. During this one step, they were each backstabbed by their peers. Now they have this one final chance to escape. This time, they will be judge, jury and executioner.
Crossover - Doubt/ダウト & Liar Game - Rated: T - English - Chapters: 2 - Words: 3,306 - Updated: 8/22/2013 - Published: 8/9/2013
The liar must die! by Sugarangels
The countries of Hetalia have landed into a game of Rabbit Doubt. Who is the liar? Who is the wolf? Who is the killer? Who MUST die? Watch out, because everyone might betray you in the end. Trust no one!
Crossover - Hetalia - Axis Powers & Doubt/ダウト - Rated: T - English - Horror - Chapters: 1 - Words: 703 - Favs: 3 - Follows: 3 - Published: 4/25/2013 - Netherlands, Germany, N. Italy, Japan