: K17 (often active on platforms like Itch.io and SubscribeStar). Platforms : Windows, Linux, and Mac.
: After a difficult childhood following your father’s departure, you find yourself developing a long-standing crush on your stepmother. The story follows the evolving, often taboo, relationship between the two of you as she balances a busy career at a software company with her home life. Stepmother Effect [Ongoing] - Version: 2.2.3
is an adult-themed visual novel game developed by K17 . As of current updates, the game has progressed past Version 2.2.3 (reaching as far as Version 2.6.3 as of January 2026). The "Ongoing" tag indicates it is still in active development with regular content additions. Game Overview : K17 (often active on platforms like Itch
: Most versions in this range allowed for the export and import of progress, often found in community-shared save bundles . Technical Details The story follows the evolving, often taboo, relationship