Passus Sum
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.
Passus Sum screenshots
Download Passus Sum v0.34
Android
Changelog
Player reviews
What players say
Mixed reviews: players find it interesting, but criticize controls, vertical screen, and static CGs.
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.
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