FATHOM supports solo play or up to four players. Choose solo when you want control over pace, sound, and decisions. Choose multiplayer when shared observation and coordinated objectives outweigh the extra footsteps, chat, and microphone noise that a group creates.
Neither choice removes the core threat. Grinsworth can hear movement, typed chat, and microphone speech. A successful party is not simply four solo players in the same server; it needs a shared route, short callouts, and a regroup plan.
Compare party sizes
Solo
Maximum control over sound and story choices. Best for slow exploration and a strict Untouchable attempt, but you must read objectives and watch every approach yourself.
Two players
One can interact while the other watches the route. Communication stays manageable if both agree on short calls.
Three players
Supports an objective reader, route watcher, and tool caller. Requires spacing so one doorway does not trap everyone.
Four players
More eyes and faster searching, but the highest noise and collision risk. Use defined roles and a fixed regroup landmark.
Choose solo for control
Solo is useful when you want to hear environmental cues, read every Story prompt, and make the ending choice yourself. You decide when to stop moving and when to speak. That makes cause and effect easier to study when testing how Grinsworth reacts.
The tradeoff is workload. You must track the objective, watch vertical and rear approaches, choose the retreat, and operate tools without another player covering the interaction. Pause before each objective and identify the exit from the reverse angle.
For Untouchable, solo removes uncertainty about a teammate’s lost life or choice. It does not make the route easy, and public badge data does not prove that solo is required. Use the party size with which you can most reliably avoid any life loss.
Build a quiet multiplayer team
Assign lightweight roles rather than permanent classes. The objective reader calls the current task once. The route watcher identifies the return line and a landmark. The tool caller announces when a flash or other limited answer is used. In a four-player group, the last player can watch the rear or keep track of separated teammates.
Use one short silence signal. After it is called, stop voice and typed chat until the team is safe. Do not repeat the signal constantly; repetition is still sound. If someone is lost, return to the landmark rather than narrating every corridor over the microphone.
Keep physical spacing. Move close enough to share information but not so close that everyone blocks a doorway, grapple destination, or locker area. During a chase, the pursued player should use the agreed route while others avoid crossing it.
Share objectives and tools sensibly
The public description confirms camera flash, grapple, and lockers, while pass descriptions add supplies and convenience tools. It does not publish every ownership or sharing rule. Check who actually holds a tool and whether an item is consumed for one player or the entire party.
Announce limited uses once. If the camera flash is gone, the team should know the next encounter needs a grapple route or quiet hiding. Do not assume another player’s Starter Pack gives supplies to everyone, and do not assume a purchased Radar shares its display.
Radar officially shows Grinsworth plus needed items and objectives in Story and Chase. Until the live game proves a team-sharing rule, treat that information as belonging to the owner and communicate only what the group needs.
Handle Story progress and endings
FATHOM says progress automatically saves, but public sources do not explain host ownership, shared checkpoints, or what happens when a party member reconnects. Before ending a Story session, let every player reach the confirmed objective transition and avoid leaving during a chase or ending choice.
At the Go Home or Go Deeper branch, decide who selects and which badge the group is pursuing. The official badges confirm both choices but do not prove that every party member receives the same branch badge. Players who need a specific result should be prepared to replay the ending path.
For Chapter 1 Complete, regroup before the final sequence and avoid letting one person advance while others are far behind. For Untouchable, agree in advance whether any teammate death ends the attempt, since the public condition does not describe group edge cases.
Recover when the team falls apart
If voice caused the chase, shorten the next callout plan. If the party collided, increase spacing and designate one exit. If the objective was missed, give only one player responsibility for reading it. Fix the identified failure rather than adding more conversation and movement.
When one player disconnects, stop at a safe landmark and inspect the current objective after they return. Do not promise that their progress or inventory state matches the host; the exact reconnect behavior needs live testing.
If the group wants open conversation and repeated scares more than a careful badge run, Chase Mode may fit better. If players want story context and saved progress, stay in Story and accept a slower pace.
A simple team protocol
- Choose Story or Chase before joining.
- Name an objective reader and route watcher.
- Pick one silence word and one regroup landmark.
- Announce a limited tool only when it is used.
- After a chase, regroup before touching the next objective.
- At an ending choice, confirm the intended badge before selecting.
This protocol stays useful even when item positions or objectives change because it organizes decisions rather than assuming a fixed map.
Continue from here
- Story Mode for Chapter 1 and save planning.
- Chase Mode for hunt-focused sessions.
- Sound and Voice Chat for detection and communication limits.
- Official FATHOM experience for the confirmed one-to-four-player wording.