Mostly Positive
Steam reception

Developed by Heart Machine · Published by Devolver Digital
Structured gameplay QA support across combat, traversal, progression, usability, narrative flow, issue reporting, and Steam Deck validation.
Platform references describe QA coverage or testing exposure where applicable and do not necessarily indicate public release availability on every platform.
Demonstrates full-progression gameplay QA across the complete player journey, from onboarding through to late-game content. Coverage spanned combat, traversal, usability and readability through structured exploratory playtesting, clear issue reporting and follow-up fix validation on PC and Steam Deck. This contribution formed part of the project’s broader QA effort.
Overview
A fast-paced action side-scroller with platform-fighter-inspired combat and a deeply interconnected world. Luca and Rhem navigate a quarantined city fractured by an interdimensional catastrophe.
I supported Possessor(s) as part of the Gameplay QA / structured playtesting effort, covering the full player journey from onboarding through exploration, progression, combat, narrative flow, and late-game content. My contribution included structured exploratory testing, issue identification, bug reporting, feedback consolidation, and follow-up validation across PC, console environments, and Steam Deck.
QA coverage areas
Supported QA and structured playtesting activities across PC and console environments, including Steam, PlayStation, and Nintendo Switch 2.
Trailer
Watch the official trailer for a quick look at the project’s tone, gameplay, and presentation.

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Publicly available indicators that provide context for the project's market presence and player reception. These are public project metrics for the title as a whole, not personal performance metrics, and do not represent any individual contributor's impact on its sales, reviews, or commercial performance.
Last checked: June 2026
Mostly Positive
Steam reception
560+
Steam reviews
209
All-time Steam peak
Sources
Public metrics are based on publicly available store or press information and may change over time.
Gameplay QA / Structured Playtesting Support
This case study is sanitized and focuses on QA methodology, player-experience analysis, and publicly discussable contribution areas. No confidential bugs, internal processes, proprietary assets, or unreleased implementation details are disclosed.