A NOVOBUILD PUZZLE GAME FOR iPHONE
Fathom
Chart what the dark won’t show.
Spend Intel to probe, sonar, and map hidden routes. No timer, no move limit — the cleanest solution wins.
EVERY MOVE WRITES THE MAP
Pick how deep to look
You start blind. Every probe earns part of the map. Probe an edge for one Intel, spend two on Sonar, or commit five to a wider Deep Pulse.
Probe
1 INTELTest one direction. Move through an open route or permanently chart the wall that stopped you.
Sonar
2 INTELSend a pulse through the nearby dark for a brief tactical glimpse.
Deep Pulse
5 INTELReach farther with a wider reveal. Powerful when you're stuck. Expensive when you're not.
THREE WAYS INTO THE DARK
A puzzle for the next five minutes or the next perfect run.
Campaign
Twelve handcrafted missions introduce the rules, then ask you to combine them in harder ways.
Daily Challenge
A fresh Easy, Medium, and Hard sequence generated for the day. Finish one challenge and move directly into the next.
Free Dive
Endless seeded missions for players who want another map, another route, and another chance to read the dark cleanly.
The signal changes. So does the job.
Echo Hunt
Find the hidden objectives by interpreting what each signal tells you.
Relay Chain
Reach multiple objectives and chart a route through the dark.
Sector Survey
Turn uncertain space into a reliable map.
The map stays still. Your solution gets sharper.
Your Intel score records how efficiently you solved the mission. Grades from S to C make improvement easy to understand, while Daily Challenges and Free Dive keep the next chart unfamiliar.
RELAY GRADE
S
- Intel
- 20
- Under target
- 9
- Objectives
- 2/2
- Walls
- 3
- Pings
- 1
Designed for focus.
Fathom gets out of the way and lets the puzzle hold your attention. Controls can move to either side, the interface respects modern iPhone safe areas, and the screen follows your device’s normal Auto-Lock behavior.
- No timer
- No move limit
- Left- or right-handed controls
- Readable landscape play
- Progress saved on device
- No ads, accounts, analytics, or tracking
Enter the dark
Can you solve it with fewer pings?
Fathom: Sonar Puzzle is available now on the App Store.
Fathom: Sonar Puzzle — Resources