Succubus Sex Trials – an adult demon girl visual novel
The Infernal Institute
At the Infernal Institute, the Succubus Sex Trials begin.
Two rivals must prove their mastery of temptation, and you have been chosen as their live subject. The rules are supposed to be simple: choose one. But as the rivalry intensifies, the lines begin to blur, drawing both competitors closer and turning the trial into something no one can fully control.
Meet the demon girls
Eluvia is an enthusiastic succubus: sweet, curious, and eager to prove she belongs. She approaches the trial with genuine warmth, learns quickly, reacts to every signal, and draws closer with a soft charm that is hard to resist.
Valerica is a dedicated devilgirl: confident, composed, and practiced. She has passed many trials before, and she intends to perfect this one. Every move is precise, every moment controlled. She does not chase reactions; she creates them.
Isadora is the boss of the Underworld: cold, commanding, and always watching. She enforces the rules without compromise, but when the competition spirals out of control, she steps in to deliver her own verdict.
Rewrite the rules
Your choices decide how far the trial goes and who ends up in your arms. Choose one rival, encourage the chaos, or push the trial somewhere it was never meant to go.
As your progress deepens, you unlock spicy animated scenes, multiple endings shaped by your decisions, light interactive minigames, and a gallery where key moments can be revisited.
A darker Velvet Chronicles story
Compared with the gothic castle romance of Vampire Mistress, Succubus Sex Trials is more infernal, more direct, and more built around temptation as a contest. It is a smaller standalone route through the same Velvet Labyrinth taste for dangerous women, supernatural fantasy, and choices that decide who gets to claim you.
Why players stick around
Adult content, properly paced
Succubus Sex Trials earns its animated scenes through rivalry and temptation, not a front-loaded gallery dump.
Characters worth falling for
Eluvia, Valerica, and Isadora each play the trial differently - warmth, precision, and cold command - so the contest stays as interesting as it is spicy.
Easy to play, hard to resist
A tight, choice-driven trial with light minigames - built as a quick, relaxing detour rather than a grind.
One growing universe
A standalone Velvet Chronicles story set in the same Velvet Kingdom as Vampire Mistress.
FAQ
The Basics
What is Succubus Sex Trials?
It is an adult demon-girl visual novel set at the Infernal Institute, where Eluvia and Valerica compete in a demonic trial watched by Isadora.
Who are the demon girls?
Eluvia is an enthusiastic succubus, Valerica is a dedicated devilgirl, and Isadora is the commanding boss of the Underworld who enforces the rules.
Gameplay
What can I unlock?
Progression unlocks spicy animated scenes, multiple endings, and a gallery where key moments can be revisited.
Availability
Is it a standalone game?
Yes. It is a focused Velvet Chronicles story in the wider Velvet Kingdom universe.
Where can I play it?
The game page links to Steam, where you can wishlist or follow release updates.
Studio & Policies
Does Succubus Sex Trials use AI?
AI tools are used in the audio-visual production pipeline. Narrative, game design and player experience are fully authored.
Does Succubus Sex Trials include NTR?
No. Succubus Sex Trials has no NTR or male-partner-swapping content - every romanceable woman is interested only in you, the player. Velvet Labyrinth has no plans to add this to its current games; if that ever changed, it would be in a separate, clearly-labeled product, not folded into an existing one.
Also from Velvet Labyrinth
Vampire Mistress
A gothic vampire romance and dating sim told as a character-driven visual novel with point-and-click 3D exploration. Serve a vanished Vampire Queen, uncover castle intrigue, and romance six dangerous women in Blackthorne Keep.
