Sierra's Lewd Anomaly Investigation
by Single Play
2D Game
2DCG
Adventure
Censored
Combat
Creampie
Fantasy
Female Protagonist
Groping
Lactation
Multiple Endings
Multiple Penetration
Oral Sex
Rape
RPG
Sandbox
Stripping
Tentacles
Transformation
Turn Based Combat
Urination
About Sierra's Lewd Anomaly Investigation
Sierra's Lewd Anomaly Investigation is a RPG Maker adult game from Single Play. Its most recent update, v1.0.3, came out on March 20, 2026. It runs on Windows. Text is in English (AI TL), and the game is censored. The game uses hand-drawn 2D art, and you play as a female protagonist. Expect adventure, combat, fantasy and multiple endings elements, plus creampie, groping and lactation scenes.
Game description
A female swordsman Sierra, investigating lewd anomalies on her own
Sierra's Lewd Anomaly Investigation screenshots
Download Sierra's Lewd Anomaly Investigation v1.0.3
Similar games
Code: Apocalypse -The Fallen Divine Princess and the King of the Abyss-
Aoi Eimura/Lop Studio
v2.00
A Master Exorcist Never Yields to Tentacle Demons
k.y.k.y
v1.0.4
Marauder of Dystopia: The Weakest Go to the Wall
ONEONE1
v1.02
Noble of Pride -The Arrogant Noble Lady & the Succubus's Curse-
Miraiyukaido
v24.07.23
Flower Goddess Ururu and the Erotic Trap Dungeon
Moe Workshop
Final
Lia and the Gem Journey
Hifumi Cafe
v2.01
Unison corD
Hemoglobin A1C
v1.06
TURUPETA(small breasts) BOIN(big breasts) ~Abused wizard and soldier adventure~
Nuruhachi Pon Pon
Final
Syster Yuri
shoku
Final
CrossinG KnighTMarE: A Hymn to the Defiled Holy Maidens
KI-SofTWarE
v1.2.1