Ren'Py / VN

Luminary Protocol [v0.51] [Jubs Games]

April 2, 2026F95

Luminary Protocol is an adult Isekai visual novel with a dark, unfolding narrative. You, along with others, are torn from your reality and thrown into Lumis—a dangerous, magic-filled copy of Earth ruled by enigmatic gods and demons.
The story begins with familiar genre tropes but quickly descends into a desperate, life-or-death struggle. Expect a mature story featuring graphic violence, sex, nudity, adult themes, and substance use.
As of 0.50 there are 6 detailed and extensive sex scenes in the game. There are also a number of scenes that are sexually charged and there is a lot of nudity. This is not intended to be a game where the MC does nothing and has people just throw themselves at him. Sex in this game is earned and intended to play out under realistic circumstances. This is a novel with a lot of sex, not a porn dispenser with a bit of story.

This is my first game, I have no development experience at all. I picked up renpy back In January 2025 and this is the result of much trial and error.
Explore a Shifting World
The world of Lumis is unstable. Chunks of other worlds are regularly transported there, merging with the landscape. This phenomenon, known as a ‘Convergence,’ brings new creatures, peoples, and technologies, offering unique locations to explore beyond the core world.
Your Path Through the Story
The game follows a linear main story, but your choices matter.
Flavour Choices: Most decisions will change your immediate experience and perspective on events, rather than branching the main plot.
Key Events: Rare, pivotal choices will have a significant and lasting impact on the story’s outcome.
Alignment System: Your actions will align you with Order, Chaos, or Balance. This will have some impact on how events play out and how characters respond to you.
A Note on Development & AI
This project would not exist without the use of AI tools for asset creation, as I don’t have the budget to hire artists. This allows me, as an amateur solo developer with no experience making software, to pair my writing with the visuals needed to bring the world of Lumis to life.
The Road Ahead: Now that the game has been out for 6 months, my goal is to continue to release a new chapter/update every 1-2 months. So far it has typically been 4-5 weeks per update. Each update has added about an hour of content. I intend to release updates as at least one fully complete “adventure” for one of the factions in the game, similar in size to what happens in Chapter 2. Alongside that, I hope to include some smaller scenes, where you get to spend down time or go on other adventures with specific characters.
A note on Audio:
DO NOT USE THE ‘MUTE’FUNCTION IN SOUND SETTINGS. If you don’t want sound then lower the volume, but if you use the mute function it will block animations that have native sound from playing at all.

Thread Updated: 2026-04-01

Release Date: 2026-04-01

Developer: JubsGames – Patreon – Itch-io – Subscribestar

Censored: No

Version: 0.51

OS: Windows, Linux, Mac

Language: English

Genre:

2DCG, AI CG, Animated, Male Protagonist, Multiple Endings, Big Tits, Groping, HandJob, Incest, Milf, Oral Sex, Stripping, TitFuck, Vaginal Sex, Virgin, Adventure, Dating Sim, Fantasy, Horror, Pov, Romance, Rpg, School Setting, Pregnancy, Monster Girl.

Installation:

1. Extract and run.

Changelog:

v0.50 – v0.51

Heidi’s first event.

Emelia special event.

Around 21,500 words of story.

Around 2,500 lines of scripting.

New feature – messaging system in notebook accessible from the main hub page after Emelia’s new event. Only one set of messages in it currently.

70 sprites and static images of Heidi.

28 animations of Heidi, totalling about 15.5 minutes.

5 x sprites or images of Karina.

1 animation of Karina.

12 x sprites or images of the MC.

11 x sprites or images of Emelia.

5 x animated transitions.

15 x backgrounds.

Corrected some continuity and spelling issues throughout the game.

Edited the home hub background image so that the dagger on the table is the one Emelia gave the MC.

Corrected some unforgivable sartorial mistakes with the MC’s new suit, Vivian should be ashamed of herself. There are a few for his suit in this update that I didn’t have time to edit out, but will get around to it…

Updated the menu background showreels, replaced some animations, added some new ones and added in some featured in the game.

v0.49c patch

Fixed more issues with some of the other Academy Missions backgrounds breaking.

v0.49b

Fixed issues with some of the Academy Missions backgrounds breaking.

v0.49

Reworked Zara’s sprites and animations from the prologue and Chapter 1.

Reworked Heidi’s sprites and animations from the prologue and Chapter 1.

Reworked a couple of Alice’s new sprites in the prologue, as the facial structure was slightly off.

Reworked, added to and replaced animations from Emelia’s sex scenes in the 2nd Cartographer’s Guild mission and her second character event. There’s still a few more to replace, but the sex scenes are now more dynamic and longer in action.

Reworked all the animations to reduce filesize, knocking about 1gb off the file size since 0.47 came out, despite all the extra sprites and animations that have gone in with this update.

Fixed some spelling issues in the 0.48 content.

Fixed a mission loop bug with Matsuyo’s event.

Fixed some formatting and spelling issues with some of the codex and character screen entries.

v0.48

Added Lilly’s 2nd event.

Added Isabella’s first event.

Added a special event for Matsuyo.

Added 4 new codex entries

Added a trans/futa content toggle to the MC’s character profile sheet as the codex entries contain the first content of this type.

Adjusted the game start to include a question about whether trans/futa content should be enabled or disabled.

Fixed the new, thicker bolded text outline not properly applying to speech.

Adjusted the image quality of most of the game image assets.

Adjusted the image quality of the intro movie assets.

The adjustments have resulted in a reduction in filesize of around 300mb, despite all the new assets from this update going in. I have still to go through and do the same thing with all of the game animations to get the filesize down further.

In terms of stats… it comes in at around 20,000 words.

17 x backgrounds

1 existing background reworked.

5 x sprites of Matsuyo.

2 x animations of Matsuyo

57 x sprites or images of Isabella

29 x animations of Isabella

12 x sprites or images of Alice

6 x animations of Lilly & Alice

28 x sprites or images of Lilly

17 x animations of Lilly (including one 4 minute long scene).

v0.47b

Fixed a bug that would cause Zara’s first event to repeat, rather than to player her second event, preventing progress with the Zara plotline.

v0.47

N/A

v0.46

More spelling and grammar fixes.

Fixed one of the images from chapter 2 where a captive’s foot was around the wrong way (gotta love AI).

Fixed an issue causing the greyed out (no content) version of the contract screen to not display.

Improved some transitions from the early game to make them less jarring.

Fixed some sprite issues related to the updates sprites for the MC in the prologue being a different size.

v0.45

Added 3 x Zara mission debrief events.

2 x codex entries added for the neighbouring countries of Cantabria and Uchos.

Adjusted the text to have thicker borders so that it is easier to read.

A few spelling and grammar fixes.

Tidied up a few jarring image transitions in older content.

Added in 5 second fade-to-blacks at the end of each event, as a clearer indicator that the event is ending.

Updated the hub screen so that if there is no content available, the contracts or character events buttons will be greyed out, rather than just not being there at all.

In terms of stats, the 0.45 update adds:

About 13,500 words of story & 1500 words of lore added to codex.

About 1300 lines of scripting.

49 images of Zara.

23 x animations of Zara.

2 x images of Alice

2 x images of Sarah

2 x animations of Sarah.

6 x backgrounds.

v0.42

Fixed a small piece of variable content that wasn’t firing at the end of the academy event when reading the newspaper. It was only displaying the chaos variant, but your reaction to viewing the newspaper should vary depending on what choice you made during the fight in the alley.

Fixed 2 images that weren’t displaying the right versions. I had left in older versions of the assets and they were being displayed instead of the newer ones. Same image, just without some of the manual editing needed to make it consistent.

Fixed a mis-named sound effect that wasn’t playing.

Various spelling fixes.

v0.41

Improved codex screens.

Added in codex entries for Astrum, Luminaria, Eldrigham, The Triumvirate and the geography of Lumis.

Reworked the prologue by updating and replacing sprites in the early section:

11 x sprites of Alice

2 x animations of Alice

13 x sprites of Lilly

1 x animation of Lilly

6 x sprites of Sarah

A few miscellaneous fixes to animations in 0.40 content.

Further spelling and grammar error fixes.

v0.40

Added in the first Academy Mission.

Fixed a few miscellaneous minor bugs and spelling/grammar issues.

64 x sprites and static images of Alice.

34 x animations of Alice

58 x sprites and static images of Lyra

20 x animations of Lyra

5 x sprites of Zara

1 x animation of Zara

57 x sprites and static images of secondary characters.

79 x backgrounds, static scene images and items.

10 x background animations.

21500 words of story.

about 2850 lines of scripting so far.

v0.36

Converted all image assets to lossless webp format which has knocked about 2gb off the file size.

Migrated all character information screens to new format.

Re-wrote most character bios.

Added in video galleries for the MC, Emelia and Alice – these are unlocked at the end of their respective events in this update.

Tidied up some of the stat tracking logic.

Checked all the score/maxscore logic to make sure it fires in the right order and at the right time.

Finished overhauling the end of content segment – it will now take you to the hub screen, the info and patreon screen is now a link in the hub.

v0.35

Added Alice’s first event.

Added Emelia’s second event.

Overhauled Vivian’s scene in Chapter 1.

Added a metaphysics codex entry.

Updated the codex screen – clicking one option will now close any other open option and added a darkened background to the text box to make it easier to read.

Rebuilt the end of content process so that it will open up the hub screen automatically.

Hub screen has been changed so that if there are any character or mission events available, the icons will be slowly pulsing. If there aren’t, the icons won’t be there at all.

Updated the stat change notifications to include a total score as well – this is still a little buggy because it now matters what order I scripted the update to the maxscore and actual score in at each choice. If I wrote for the game to update the maxscore after the actual score was updated, it won’t reflect that in this notification. I will be going through all the choices and making sure they are in the right order over the next week. The stats are correct in the background.

Migrated the MC’s character profile screen to the new format. It will now show (your player name) Sinclair, rather than just “You”.

Added stat tracking to the player character screen.

Fixed some bugs related to maxscore stat tracking – unfortunately now that the game has moved out of it’s linear progression portion, I can’t fix the incorrect max score stats on existing saves – sorry. I thought this would be a nice little feature that was easy to implement, but I have totally ballsed it up. It should™ now all be correct on a new save.

Fixed a bug in the prologue causing a soft crash.

Fixed a few errant spelling and grammar mistakes.

Fixed a bug with Saga’s character and gallery screens not working as intended.

Removed about 15-20 extra backgrounds that were never used to reduce file size.

Added more animations that are used in the game to the menu screen background player.

v0.3

Added the 2nd Cartographer’s Guild mission.

Fixed a crash related to skipping Isabella’s romance content.

Fixed the max score counter for aberrant gnosis, Emelia, Lilly and Sarah being too high.

Added a correction in to make sure that the max score is set correctly for existing saves.

Updated the character galleries – added in character sheets and galleries for Saga, Felsia, Xanthe and Kaisa. These will unlock once you complete the missions that you encounter them in game. I also adjusted the position of the buttons to access character sheets for non-romanceable characters to the bottom row.

For these characters I created a new version of the character sheet, one that can I can easily update to add in lore and info, whereas previously the character sheets were all fixed images that I could not really update unless I edited and replaced the image. All the old characters are using the old format still, I intend to migrate them for 0.35.

Added in an explanation of the alignment system to the codex screen.

Fixed a few spelling and grammar errors.

The update stats are:

Approx 12500 words of story.

Approx 2200 lines of scripting.

56 sprites, 1 fixed image and 42 animations (approx 11.5 minutes) of Emelia added.

10 sprites and 1 animation of the player (there are several fixed images that he is also shown in).

10 sprites and 3 fixed images of Kaisa.

8 sprites and 2 animations of Xanthe.

11 sprites, 14 fixed images and 4 animations of minor characters.

25 backgrounds and 4 animated backgrounds

v0.28

All versions:

Corrected an error introduced with the option to skip Isabella’s sex scene in Chapter 1.

Corrected a missing dialogue tag in one of the new scenes.

Improved the transition flow in Emelia’s camp scene in the first Cartographer’s Guild mission.

Mobile Version:

I know I said I wasn’t going to support the mobile version, but I took advantage of having it available to play through whilst I was away. I was pleasantly surprised to find that it all worked fine and looked really good on the small screen. So, whilst it isn’t a main version, I did want to make some improvements. The first of which is to remove the text box background so you can see what is behind it.

The mobile version is much harder to modify than the main version. I’ve been trying to get the side images to work in a way that doesn’t blot out the text and to add a button that completely removes the onscreen UI (an equivalent to the ‘h’ key for the PC version). But it’s proven surprisingly stubborn at resisting my efforts. I’ll have another go at it, but for now it’s just the removal of the textbox.

v0.27

N/A

v0.26

N/A

v0.25

N/A

v0.24

N/A

v0.23

N/A

v0.22

Corrected some spelling errors.

Corrected some images not displaying in the galleries.

v0.21

Re-worked the gallery as I didn’t realise that the first time you went into the gallery, it fixed all the images forever. Should now dynamically update as you progress.

Fixed a video not playing in one of the camp scenes.

It turns out it was 6 new animations for Isabella, I had added two versions of the same scene and set it to the wrong version. Now plays the right video.

Fixed a few spelling and name issues.

v0.20

Enhanced the sex scene in chapter 1 with several animations.

Added a linking section to explain what happened in the 2 month prior to the MC’s graduation.

Added the first mission for the Cartographers Guild.

Overhauled the character galleries, allowing a greater variety of images to be shown and therefore a greater number. Added a system to patch old saves to make sure all the images are visible that should be. Bear in mind that these galleries will display the entire sprite and they weren’t always intended to be shown in their entirety. So some may have mangled hands/feet etc.

Spent some time working on the mission management system to better enhance it.

Added systems to track maximum potential scores for each stat in the game.

Added a general key information update popup (quest outcome, key decisions etc.)

Fixed issues where the MC’s default name was still in the script instead of the player chosen name.

Added a system to customise relationships between key characters (needs a new save – sorry).

Updated the display text to be on a completely transparent background. To keep it visible the font is now displayed as white with a black outline. All narration and spoken text uses the same font, the side images should be enough to indicate when it is speech over narration.

Enhanced some of the original Chapter 2 content with a couple of additional animations.

Some 0.2 stats:

The story of the adventure is around 18-19000 words. There are several variations of key events so the amount each player will see on a single playthrough I would guess at being about 12-14,000.

The update includes more than 3500 lines of scripting in renpy.

28 standard backgrounds and 8 animated backgrounds.

72 sprites and 25 animations of Emelia.

3 equipment item sprites and 3 illustrative images.

11 sprites of the MC. 1 animation focused on the MC.

1 sprite and 1 animation of Alice.

1 sprite and 1 animation of Ethan.

6 animations for Isabella.

1 sprite and 1 animation of Lilly.

1 sprite and 4 animations of Sarah.

1 animation not already accounted for above added to chapter 2’s farmhouse scene.

23 sprites and 11 animations for new secondary characters or encounters.

v0.1

Includes complete Prologue, Chapter 1 & Chapter 2

Setup of faction and character plot and mission management systems.

Developer Notes:

This is my first attempt at a game. I hope it lands well, it’s not intended as a “quick release” kind of game. There is adult stuff in the first release, but the focus is the characters and the story. So if you are hoping for a shit ton of sex, this isn’t going to be the game for you. It will feature a lot of adult content, including a lot of nudity, horror, violence, drug and substance abuse, people doing pretty horrible things to each other, along with supernatural and magical stuff that definitely comes with an 18 rating.

Future tags (already planned for future releases):

BLACKMAIL, CORRUPTION, CREAMPIE, DRUGS, EXHIBITIONISM, FEMALE DOMINATION, FUTA/TRANS, HAREM, INTERRACIAL, LACTATION, MASTURBATION, PROSTITUTION, SEXUAL HARASSMENT, SLAVE, TEASING, BDSM

Future tags possible; still considering if they will fit here or could be added but haven’t planned where or how yet. There is a really good chance they may never appear at al (and even if they do, they may be not involve the MC)l:

CHEATING, MALE DOMINATION, GAY, HUMILIATION, LESBIAN, MULTIPLE PENETRATION, SEX TOYS, TENTACLES, TRANSFORMATION, SISSIFICATION, URINATION, VOYERUISM, ANAL SEX

I think I overcomplicated this when I first wrote the disclaimer about the controversial tags.

Short answers..

NTR .. this is not an NTR game, it is not intended to appeal to that audience. Not that I have a problem with that audience or that type of content, it’s just not what this game is about. There are 2 characters who may get scenes where they have sex with other people. One of them is a prostitute, it happens before you are romantically engaged with them and you don’t see it. The other is a key character, but it is entirely your choice as to whether it happens or not – in other words it’s avoidable.

Gay/sissification – not coming any time soon. If it does eventually make it in, it won’t be main characters. It will be something happening to non-key characters during one of the plots and you won’t see anything if you don’t want to see it.

Futa/Trans – There is one god and one key character who are intended to be transgendered. They were not born male and then changed, it’s their species or their divine nature. There is a possibility that a male character may go through transformation. I say possibility because I have the plot line in my head, but it’s way way way down the list of priorities. If it does get added, then it will be avoidable. The content will be avoidable and if I can allocate the time to do it, I will try to make a normative and a trans version available for these characters.

Rape – the MC does not and never will engage in any kind of non-con, assault or rape. They will encounter other people who are, have or could be about to experience this. His role, is to stop it happening and/or punish those who did it.