Shrink with a Succubus is a 3D combat game made by M87124 Games with Unity. You play as a male protagonist in a giantess-themed setup where the main task is to summon a giant succubus, then run and last as long as you can before she catches you. The focus is on chase-style survival and combat mechanics.
Development is ongoing. The current build is v0.16.2, dated July 2, 2026, for Windows in English, uncensored. The listed v0.16 update adds a new Foot Trial to the Succubus Room’s Trial Mode, improves the Mouth Trial scene, and adds fresh background music to the main scene. Trial Mode unlocks after defeating the succubus once, and future updates plan more trials and failure sequences.
Developer's description
Shrink with a Succubus" is a giantess-themed combat game.
In the current build, you will be summoning and being chased by a giant succubus.
You have to survive as much as possible before she catches you.
v0.16
In this update, a new trial mode has been added to the Succubus Room: the
Foot Trial
.
As with the existing trials, you'll need to defeat the succubus at least once to unlock Trial Mode.
Alongside the new Foot Trial, this update also includes an improved Mouth Trial scene and a new BGM in the main scene.
Future updates will continue to add more trial types and additional failure sequences.
v0.15.1
In this update, a new mini-game mode,
Trial Mode
, has been added to the Succubus Room.
In order to unlock Trial Mode, you’ll need to defeat the succubus in any difficulty at least once.
Currently, only the
Mouth Trial
is available, but future updates will add more trial types as well as additional failure sequences to expand the experience.
v0.14
In this update,
Succubus customisation
has been added to the
"Succubus' Room"
.
Players can now choose different costumes there, and the selected outfit will be reflected in both the
main game
and within the
room
.
This update also includes minor visual improvements to the
mouth
and
feet
areas of the succubus model.
v0.11.1
Appearance changes / improvement
- Minor change of the succubus’ foot texture
- Minor change of the succubus’ tongue texture
Xmas Mode
- Xmas mode is enabled in the game
Bug fixes & Others
- Improve the camera shake when the player’s operating the cannon
v0.11.0
In this update, you can now defeat the succubus.
The combat system has been changed up a bit.
Take down the succubus with the cannons, then aim for the gems on the bracelets on both her arms.
After you've managed that, take her down once more, then take a shot at the necklace gem to seal the deal.
If you successfully defeated the succubus, your best record time is displayed in the starting screen.
v0.10.1
In this update, the cannons can be destroyed by the succubus now.
There are 2 new motion added into the succubus in the main game mode, for accommodating the new mechanism.
After the cannons are destroyed, you can approach the cannon original positions and re-spawn them.
v0.9.0
In this update, a new mode - "Gallery Mode" has been added into the game, which would allow you to revisit most of the interactions with the succubus.
You would have to encounter each of the scenarios first in the main game, then it would be automatically unlocked in the gallery.
Currently you can access "Gallery Mode" from the pause menu or the game over screen. In the future, a particular object would be placed in the main game, so you can interact with it to access "gallery mode", making the transition more immersive.
The attached control layout has also been updated with control mappings used in the "Gallery Mode"
v0.8.0
In this update, the crossbow has been fully implemented to both VR and PC mode.
In VR mode, the crossbow is initially stored on your back. You can equip and store it on the back of your body.
Once the succubus is knocked down, you will be able to break the magic seal in the necklace, with the magic crossbow arrows in the future.
You can acquire the magic arrows by interacting/grabbing them at the arrow towers built in the scenery.
A new knockdown motion is added into this update.
The cannon control has also improved in the current build. You can now move the cannon more freely, making it easier to aim and shoot down the succubus.
v0.7.1
In this
minor
update, new
motion variants
have been added into the succubus.
There are also some
minor / QoL
updates included, such as adding an
"Anime Outline"
appearance option, a
"Skip Timer"
option, minor
rework
and
tweaks
of the succubus'
appearance
.
v0.7.0
"In this
update
, a new
mechanic
has been implemented into the combat system - the
knockdown
mechanic.
Now the succubus can be
knocked
down by
shooting
a certain number of cannon balls.
Once she is
knocked
down, you can use the
crossbow
to
break
the magic seal in the
necklace
, with the magic arrows. You can
acquire
the magic arrows by
interacting
the
arrow towers
built in the scenery.
The crossbow is currently available in
Non-VR
(PC) mode only, as there are still some
complications
on implemented the weapon in
VR
mode. It should be
ready
in the next update.
Face expression
has also been implemented into the succubus".
v0.6.0
In this
update
, there are new
motions
and
minor
improvements on the
existing
motions for the
succubus
.
There's also reworks on the succubus AI behaviour. She'll crouch first then grab you if you get too close.
v0.5.3
Combat game-mode implementation
- Improve Succubus AI Navigation to reduce the succubus getting out of bounds
- Fixed the cannon control to rotate properly in non-VR Mode
- Reduced start timer time back to 10 seconds
Player reviews
Player rating3.0 / 5 · 6 ratings
Written reviews6 · avg 3.0★
Positive (4–5★)50%
Latest review2025-04-13
What players say
Reviews split evenly, with praise for niche appeal and criticism for bugs, difficulty, and limited content.
5★1
4★2
3★0
2★2
1★1
Players like
Niche size-fetish appeal and simple original gameplay
Cute, sexy succubus character
Common complaints
Bugs and glitches make the game hard to play
High difficulty and frustrating enemy attacks
Poor cannon aiming and limited weapon range
Best for players who want niche size-fetish content and simple original gameplay.
Summarised from 6 written player reviews.
darklord56789762025-04-13★★★★★
Highly recommended game for people with size fetish. Hell I did not even know i had this fetish but being into it for 3 minutes was enough for me. Honestly i would like a lot of things to be added…
gdrocker2024-04-08★★★★★
Version under review: 0.12.0 Amending my review, because I figured out how to avoid a game-breaking glitch that made defeat practically inevitable. The game is still quite dissatisfying to play, however. It feels like the character should be moving a…
Batatasaurus2024-01-14★★★★★
Since its a small game, and since there arent many games quite like it, and despite the lack of nudity and actual hentai/porn, it was still an enjoyable experience. There is a gallery for the game which requires you to…