Side Effect

by Guma Games

Uncensored Windows/Linux
VersionCh.1 P2 v0.1
EngineHTML
Released2024-12-10
Updated2025-02-14
LanguageEnglish

About Side Effect

Side Effect is an adult text-based visual novel by Guma Games, built with HTML and Twine. You play a 44-year-old writer and former literature teacher who now shares ownership and management of Riverton High School. The story is set in Riverton, a lively but small city, and follows a man coming out of an eight-year depression after taking an experimental medication. It focuses on introducing characters, forming relationships, and branching paths, with adult themes including cheating and interracial relationships.

The current release is Chapter 1 Part 2 v0.1, dated December 10, 2024, for Windows and Linux in English, uncensored. Development is ongoing, though this update concludes Chapter 1. It adds a character stats system with Patreon premium cheats, lets players choose main character names and step-girl relationships, includes eleven new scenes between days one and six, and provides premium Patreon scenes with Leah, Danni, Skye/Valentina, and Katarina. Several scenes were rewritten, image bugs were fixed, music was temporarily removed, and the chapter ending was added.

Developer's description

Side Effect is a visual novel-style game, developed in Twine, which aims to deliver a story rich in detail and with several options for paths to follow. At first, the focus of the project will be on introducing the main characters and building the basic relationships between them and their possible conflicts. In this story you will play a complex man, a writer and former literature teacher who now co-owns and administers the prestigious Riverton High School. In Riverton, a vibrant yet quaint city, you, at 44 years old, are emerging from the shadows of a debilitating eight-year depression. Thanks to a groundbreaking experimental medication, you find yourself reinvigorated, ready to reclaim the life that once slipped through your fingers. From a shadow of your former self, you are now filled with a newfound zest for life—and an unexpected side effect: an insatiable desire that seems to have awakened after years of dormancy. Spoiler: More details The project has only just begun. I'm not a programmer, English isn't my first language and I'm not a visual artist. Therefore, the structure of the game will be very simple right now and I will dedicate my time to making the game mechanics more interesting as the project progresses. I want the game to be collaborative with those who believe in and want to support my work. You can contribute to the project in various ways. You can support me financially through the platforms indicated in this post, but if you don't have this condition there's no problem, you can give your opinion, suggestions and constructive criticism so that I can deliver a better job. Thank you in advance and I hope you enjoy the game.

Download Side Effect Ch.1 P2 v0.1

Changelog

Ch. 1 - Part 2 v0.1 1 - Added a character stats system with cheats for Premium Patreon members. 2 - Added the possibility to choose the names of all the main characters. 3 - Added the possibility to choose the relationship with the step girls. 4 - Added 11 new scenes between days 1 and 6. 5 - Added extra scene exclusively for Premium Patrions with “Leah”. 6 - Added extra scene exclusively for Premium Patrions with “Danni”. 7 - Added extra scene exclusively for Premium Patrions with “Skye(Valentina)”. 8 - Added extra scene exclusively for Premium Patrions with “Katarina”. 7 - Several scenes have been rewritten and edited. 9 - Image bugs fixed. 10 - Music temporarily removed. 11 - Conclusion of Chapter 1. This concludes chapter 1 with: 18 possible sex scenes in total (depending on your choices). 4 exclusive scenes for paid members. 141 clips (premium version). 312 written passages. Ch. 1 - Part 1 v0.1 - Initial release *Highly recommended to start the game again. Old saves may not work and much of the content has been rewritten. Read the changelog notes for more details.

Player reviews

Player rating 4.0 / 5 · 3 ratings
Written reviews 3 · avg 3.7★
Positive (4–5★) 67%
Latest review 2025-05-01

What players say

Reviews are mixed, with praise for interface and media but criticism of shallow choices and browser issues.

5★ 1
4★ 1
3★ 0
2★ 1
1★ 0

Players like

  • Decent selection of attractive love interests
  • Appealing GUI with high-quality embedded media
  • Coherent pacing with embedded adult video content

Common complaints

  • Choices mostly lack consequences beyond the opening
  • Broken on some browsers due mixed casing
  • Missing sound, save slots, gallery, and relation clarity

Best for players who enjoy polished interfaces, embedded media, and coherent adult pacing.

Summarised from 3 written player reviews.

amd_dman 2025-05-01 ★★★★★
Good: - high quality media - decent choice of girls - UI isn't bad on the eyes Bad: - More of a Kinetic Novel, choices don't have consequences besides the one in the beginning. - Broken on some browsers due…
NightOwl71 2025-03-12 ★★★★★
Side Effect is one of the few HTML games with a neat, appealing user interface aka GUI design. The text-based tag is kind of misleading as it has plenty of adult/porn video content which is properly sized, formated and embedded…
Deleted member 8064893 2025-02-14 ★★★★★
A very Rare example of good html game with hot LI's and coherent pacing but would be great if had sound and some more save slots and also a gallery option. also the character relation page needs some clarity would…

Similar games