The game
Steer a small yellow sub into a lightless trench. Your lamp is your only light and your harpoon your only friend. Collect glowing samples, catch air bubbles before your tank runs dry, bring down the wardens at every zone gate, and decide when to turn back: every metre deeper is worth more, if you make it home.
One thumb, endless dark
Drag to steer, your lamp shows the way and your harpoons do the rest. Simple to play from the first second.
Wardens of the deep
Every zone ends at a gate guarded by a leviathan. Find its glowing weak spots with your light and bring it down.
Build your sub
Eight rooms to grow, each one a little working machine: tanks, gears, flasks, a robot arm and more.
Ghost duels
Race other divers' dives as glowing ghosts, pass their depth and climb six leagues.
Something new every day
Weekday festivals, daily quests, weekly goals and rankings that pay pearls.
Know when to surface
Air, hull and a hold full of samples: dive deeper for more, or come back up with everything.
Screens
Support
How do I steer?
Touch anywhere and drag: your sub swims the way you drag and its lamp points where it swims. Harpoons fire by themselves at whatever the lamp lights up.
What runs out, and how do I get it back?
Air drains every second. Catch the bubbles that rise from vents in the rock walls to refill it. When the air is gone the hull starts to fail, so turn back or surface in time.
What happens if my hull breaks?
You may keep diving once by watching an optional video, and after that with pearls. Otherwise the dive ends and you lose part of the samples you carried; the Cargo Hold room lowers that share. Surfacing yourself keeps everything.
What are wardens?
At every zone gate (150 m, 400 m, 800 m and deeper) a giant warden wakes and crosses the trench again and again. Keep your lamp on the glowing spots along its body until they all go out. The current lets nobody deeper while it lives.
What are rooms?
Your sub has eight rooms: air tank, hull plating, lamp, engine, harpoon bay, laboratory, repair bay and cargo hold. Build them with samples (or pearls) in the Submarine screen; the last four open as you get deeper.
How do duels work?
Pick a rival, then dive in the same trench. Their dive runs beside you as a pink ghost, and the depth where they stopped is a glowing line across the shaft. Pass it to win trophies and climb from Bronze to Legend league. Three duels a day, two more by video.
What changes each day?
Every weekday has its own festival (Airy Monday, Pearl Tuesday, Warden Hunt Wednesday, Crystal Thursday, Bright Friday, Deep Weekend), plus three daily quests, a weekly and a monthly goal, and daily and weekly rankings that pay pearls.
Are purchases required?
No. Pearl packs, the Starter Pack, timed offers, the piggy bank and No Ads are optional, and rewarded videos only play when you choose them. Every pack shows what it contains before you buy.
How do I restore a purchase?
Purchases are tied to your Google Play account. No Ads comes back when you reinstall the game. If anything is missing, write to us with the order number from your Google Play receipt.
Anything else, or found a bug?
Write to [email protected]. We answer within a few days.
Privacy Policy
Effective date: 10 November 2026
In short: Fathomfall has no sign-up of its own and never asks for your name or email. Your progress is saved on your device and, once online features are on, under a random player ID on Unity Gaming Services (or linked to your Google Play Games account if you sign in there). Rankings and duels show other players an automatic nickname with your depths. The free game shows ads from Google AdMob: rewarded videos only when you choose to watch one, and occasional full-screen ads between dives. Optional in-app purchases go through Google Play; we never see your payment details. Unity Analytics counts, in aggregate, how the game is played. The Meta (Facebook) SDK tells Meta that the game was installed and opened, and reports purchases and ad revenue, so we can measure our own ads. In the EEA, the UK and Switzerland, personalised ads, analytics and Meta measurement only run if you agree in the consent form.
1. Who we are
Fathomfall ("the Game") is developed and published by SolidProd, a brand of Elizan Media Organizasyon Ltd. Şti., a company registered in Türkiye ("we", "us", "our"). We are the data controller for the processing described here. Contact: [email protected].
2. What we do not collect
The Game has no sign-up of its own. We do not collect your name, email address, phone number, contacts, photos, precise location or payment details, and the Game has no chat or free-text messages. Your sub, rooms, pearls, samples, quests and settings are stored on your device (in the Game's local storage) and are deleted when you uninstall the Game. We run no servers of our own: online features run on Unity Gaming Services, which store only the game data listed below.
3. Third-party services and the data they process
| Service | Purpose | Data processed |
|---|---|---|
| Unity Authentication (Unity Gaming Services) | Signing you in anonymously, or with Google Play Games if you choose, so your progress and the online features follow you | A random player ID and session token; if you sign in with Google Play Games, the Play Games player ID that links to it. No name, email or password |
| Google Play Games Services | Optional sign-in, so you can keep your progress on a new phone and switch accounts | Your Play Games player ID and display name, handled by Google under its own terms |
| Unity Cloud Save and Cloud Code (Unity Gaming Services) | Keeping a copy of your progress, the daily and weekly rankings, duels and their league, and checks that keep results fair | The random player ID, your automatic nickname, your progress (rooms, currencies, quests, records), your daily deepest dive and weekly total depth, your duel results and trophies, and for duels the depth path of your dive that other players race as a ghost |
| Unity Analytics (Unity Gaming Services) | Understanding, in aggregate, how the game is played: retention, progress, feature use, ad and purchase revenue | Game events, a random installation/player ID, device model, OS version, language, approximate country, session times, purchase receipts (product, price, currency) |
| Google AdMob | Showing and measuring rewarded ads and interstitial ads, frequency capping, fraud prevention | Advertising ID (Android Advertising ID), IP address, device and app information, ad interactions |
| Google User Messaging Platform | Asking for and storing your consent choices | Your consent choices, device and app information, approximate region |
| Google Play Billing (through Unity IAP) | Processing optional purchases (pearls, packs, the piggy bank, No Ads) and restoring them; the receipt is checked to prevent fraud | Purchase token, product id, purchase time. Your payment method and billing details stay with Google and are never shared with us |
| Meta (Facebook) SDK, in the EEA, the UK and Switzerland only if you agree | Measuring installs, app opens, purchases and ad revenue that come from our ads on Facebook and Instagram. We do not use Facebook Login | App install and open events, game progress events, purchase value and currency, ad revenue, Advertising ID, device and app information, IP address |
| Unity (game engine) | Running the Game | Limited technical data such as device model and OS. We do not use Unity Ads |
More information: How Google uses information from apps that use its services · Google Privacy Policy · Meta Privacy Policy · Unity privacy.
What other players see. Your nickname is chosen automatically; the Game has no name entry. Other players can see that nickname with your depths on the rankings and in duels, and race a ghost of your dive's depth path. Duels are asynchronous: no real-time contact between players takes place.
Analytics. Unity Analytics receives game events such as dives started and ended, depths reached, wardens defeated, purchases and rewarded ads watched, so we can see where the game is too hard and which features players use. In the EEA, the UK and Switzerland it only runs if you agree in the consent form.
4. Consent and your choices
EEA, UK and Switzerland: before personalised ads, analytics or Meta measurement, the Game shows a consent form (Google User Messaging Platform). You can accept, reject or choose specific purposes, and change your choice later with Privacy options in Settings. If you reject, ads may still be shown without personalisation.
Android: you can delete or reset your advertising ID, or opt out of ads personalisation, in your device settings (Google → Ads).
Ads: rewarded videos (keep diving, double samples, new upgrade cards, free pearls, an extra duel) only play when you choose them. Interstitial ads appear only when you leave the result screen after a dive, never during a dive, never in your first dives and never right after a record or a warden victory. No Ads turns interstitial ads off. The Game shows no banner ads.
5. Legal bases (GDPR, UK GDPR, KVKK)
We rely on your consent for personalised advertising and, where required, for analytics and Meta measurement; on our legitimate interests in keeping the Game working, secure, fair and free of fraud (anonymous sign-in, server-side checks on rankings and duels, ad fraud prevention, non-personalised ads); and on contract performance for any purchase you make. You can withdraw consent at any time as described above.
6. US state privacy rights (including California)
We do not sell personal information for money. Showing personalised ads through Google AdMob, and measuring our ads with Meta, may be considered "sharing" or "targeted advertising" under some US state laws. You can opt out by deleting your advertising ID or opting out of ads personalisation on Android. Residents of California and other states with privacy laws may request access to or deletion of their personal information by emailing us; we will not discriminate against you for using these rights.
7. Children
The Game is intended for a general audience and is not directed to children under 13 (or the higher minimum age in your country). We do not knowingly collect personal information from children. If you believe a child has provided personal information, contact us and we will delete it.
8. Retention, transfers and security
We keep no personal data on servers of our own. Your local save stays on your device until you uninstall the Game. Daily rankings start fresh every day and weekly rankings every week; your profile, progress copy and duel records on Unity Gaming Services are kept while the Game is offered and are deleted on request. Unity Analytics data is kept for up to 13 months and deleted on request; AdMob data is kept according to Google's policies and Meta install data according to Meta's policies. Our providers may process data outside Türkiye and outside your country (for example in the United States); such transfers rely on the providers' standard safeguards, such as Standard Contractual Clauses. Data is transmitted over encrypted connections.
9. Your rights
Depending on where you live, you may have the right to access, correct or delete your personal data, to restrict or object to its processing, to data portability, and to complain to a data protection authority (in Türkiye, the Personal Data Protection Authority, KVKK; in the EU, your local authority). We cannot identify you by name: online data is tied only to a random player ID. To access or delete it, email us the player code shown in the Game's Settings and we will find it. For anything else, email [email protected] and we will respond within 30 days.
10. App permissions
The Android version requests internet and network-state access (for the online features, ads and purchases), the advertising ID permission and the billing permission for in-app purchases. It does not request access to your location, camera, microphone, contacts or files.
11. Changes to this policy
We may update this policy, for example when we add a new service. The effective date at the top shows the latest version.
12. Contact
SolidProd, a brand of Elizan Media Organizasyon Ltd. Şti., Türkiye · [email protected]
Terms of Use
By downloading or playing Fathomfall you agree to these terms. The Game is provided by SolidProd, a brand of Elizan Media Organizasyon Ltd. Şti., for your personal, non-commercial entertainment.
Licence
We grant you a personal, non-exclusive, non-transferable, revocable licence to play the Game on devices you own or control. You may not copy, modify, distribute, sell, reverse-engineer or create derivative works of the Game or its content, except where the law allows.
Ads
The Game is free and supported by advertising: rewarded videos you choose to watch, and occasional interstitial ads between dives. Rewards from ads have no monetary value and cannot be exchanged or refunded.
Purchases
The Game offers optional in-app purchases (pearl packs, the Starter Pack, timed offers such as the Victory and Boost packs, the piggy bank and No Ads) through Google Play, under its terms. Pearls, samples and other virtual items, including rewards from quests, rankings, duels and events, have no monetary value, cannot be transferred or exchanged for money and are used within the Game. Every pack shows its contents and price before you buy, and timed offers show how long they last. Refunds are handled by Google according to its policies. Nothing in the Game renews by itself.
Online features and fair play
Rankings, duels, leagues and events need an internet connection and may change or end. Rivals may include computer-generated ones while the player base is small. Do not use cheats, modified clients or automated tools, or submit results the Game did not produce; we may remove such entries, trophies or rewards.
Availability and changes
We may update, change or discontinue the Game or parts of it at any time. We try to keep the Game balanced and free of bugs, but it is provided "as is" without warranties of any kind to the extent permitted by law.
Liability
To the extent permitted by law, we are not liable for indirect or consequential damages arising from your use of the Game. Nothing in these terms limits liability that cannot be limited by law.
Third-party content
The Game uses fonts under the SIL Open Font License. Google Play is a trademark of Google LLC. Trademarks belong to their owners.
Governing law
These terms are governed by the laws of Türkiye; mandatory consumer protections of your country of residence still apply.
Contact
Delete your data
On your device. Fathomfall saves your sub, rooms, currencies and progress on your phone. Uninstalling the Game, or clearing its storage in your phone's app settings, deletes all of its local data, including the sign-in token of your random player ID.
Online data. Your profile, progress copy, ranking entries and duel records are kept on Unity Gaming Services under your random player ID. To delete them, email [email protected] with the player code shown in the Game's Settings. We will delete that data, which also removes you from the rankings and from the duels other players can race, and ask Unity to delete the analytics data linked to the same player ID. Look up the code before you uninstall.
Advertising identifiers. To reset the identifier used by Google AdMob and Meta, use your device settings (Android: Google → Ads → Delete/Reset advertising ID).
We confirm every deletion request within 30 days. Questions: [email protected].