Passus Sum

by Red Pines Corp

Uncensored Windows Android
Versionv0.34
EngineOthers
Released2025-03-29
Updated2025-05-31
LanguageEnglish

About Passus Sum

Passus Sum is a 2D adult exploration game made by Red Pines Corp with the Others engine. You play as a male protagonist exploring the whereabouts of UnVesper, a cursed location inhabited by a strange creature. The game is built for one-handed control and has no game-over state, so the focus is a slow journey through a grim, bizarre place rather than challenge. Its themes include horror, monster girls, and puzzles.

The current build is v0.34, released March 29, 2025, and development is ongoing. It runs on Windows and Android in English, with no censorship. The update adds more than fifty scenes, three or more areas, two new characters named Saltatio and Nihili, and five endings. It also improves map accessibility with draggable positioning and clearer exits, adds a section for tracking each sorveta's level, updates scene visuals and headers, marks main-route scenes green in the gallery, improves roulette mode quality, makes completed goals explode, and refines audio and effects.

Developer's description

Explore the whereabouts of UnVesper, a cursed place where weird creature inhabits Passus Sum is an exploration game with one-handed gameplay and no game-over. It is not meant to be challenging; it is just a trip down an awful place full of bizarre stuff. This game is under development. I've been willing to create a bigger game for a while, and I hope this project suits it. Your feedback is extremely important to help this journey.​

Download Passus Sum v0.34

Changelog

v0.34 50+ New scenes; 3+ areas; 2 new characters: Saltatio and Nihili; 5 new endings; Map improvement Better accessibility for the map; Draggable position; Better view of the exits; a new section for tracking each sorveta's current level; Scenes improvement Slightly increased the random range for the skin color; Slightly altered the shading algorithm ; Scenes' graphics replaced with an NPC sprite work; Scenes' graphics now display red while not seen and fade to black when the level criteria are not met; Changed the display header for each scene name; QOL for roulette mode; Main Route scenes are now displayed in green at the gallery; Other changes Goals now explode upon completion; Improvements to the audio and effects that were implemented in version 0.25; NPC Camillus now sells a fake mask for bypassing the MaskMadness area; New NPC Silva will teleport you from Camp to the SavePoint; Reworked prices at camp; Added a few shortcuts between areas; Slightly increased image compression; Artifex's scenes moved out of the camps; Secretly implemented a debug mode open to players with an item add console and a non-collision mode; Added WitchHouse (To be properly implemented soon); v0.232.421 initial zone release

Player reviews

Player rating 3.0 / 5 · 3 ratings
Written reviews 3 · avg 2.3★
Positive (4–5★) 0%
Latest review 2025-06-14

What players say

Mixed reviews: players find it interesting, but criticize controls, vertical screen, and static CGs.

5★ 0
4★ 0
3★ 2
2★ 0
1★ 1

Players like

  • Unusual exploration loop feels interesting to some
  • Quirky weird style draws some attention
  • Potential fun if technical issues are fixed

Common complaints

  • Small vertical low-resolution screen feels phone-like
  • Awkward controls and no remapping options
  • Static CGs feel baited by preview images

Best for players who enjoy quirky exploration despite rough controls and static CGs

Summarised from 3 written player reviews.

Suminohana 2025-06-14 ★★★★★
It's all weird and quirky, but... - Horrible controls. You move with the arrow keys, but Enter is the select/interact, Shift (of all keys) opens the inventory, and to open the map you need to manually select it with the…
Greediestestest 2025-05-20 ★★★★★
.... this is weird game I don't know why they made it to be phone game, but screen is cut into phone size. It is mostly "exploration" game where you look for stuff to unlock stuff that might unlock you…
Redyqar 2025-05-20 ★★★★★
Feel kinda baited by the screenshots . Judging by preview images, I assumed there are side screens with CGs to show you action during gameplay. In reality, preview images are 3 unrelated screens next to each other. Instead of dynamic…

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