Parasite Days
Parasite Days Summary
Parasite Days is a ad-supported, with in-app purchases Android app in Adventure by 合同会社ズィーマ. Released in Aug 2020 (5 years ago). It has about 672.5K+ installs and 16.6K ratings with a 4.80★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 12.8K monthly active users and generates around $<10K monthly revenue (60% IAP / 40% ads). Store metadata: updated Nov 21, 2025.
Recent activity: 815 installs this week (30.8K over 4 weeks) showing above average growth , and 19 new ratings this week View trends →
Store info: Last updated on Google Play on Nov 21, 2025 .
4.8★
Ratings: 16.6K
Screenshots
App Description
Good morning, Hostbody!
You awaken to find a strange but cute creature growing from your arm.
It turns out to be a terrible parasite that will drain all of its host's vitality.
Do you kill it, or let it kill you?
Introducing the world's first parasite-purging adventure game.
++Your Immune Response is Key++
Choose supplies that will improve your health so you can withstand the parasite!
Uncover food combos that produce gastronomic reactions as you struggle to survive!
++Simple Controls++
No difficult motions required.
++Multiple Endings++
Your actions will alter the story.
++Completely Free++
Fully playable without spending any money.
++Other++
No story connections to previous games (though there is a shared worldview).
Some endings are good, others are bad.