ANOMALITH Demo Walkthrough: Hospital Route and Boss

The ANOMALITH demo covers the opening and one full hospital level, ending in a boss. It takes roughly 45 minutes if you follow the main route, longer if you search every side room, and the producer puts the whole slice at about ten percent of the finished game. Below is the route in order, including the two things most players walk past.

Before you launch

The demo is a separate Steam application (app 4682820) rather than a branch of the main game, and it is also available on PlayStation 5 and Switch 2. It has been live since late July 2026 and was extended, so it is not a limited weekend window.

It contains the opening section, the hospital level, a Workshop tutorial and the boss. It does not contain the apartment block, the shopping street or anything past the hospital, which is worth knowing before you judge the game's variety on it.

The hospital route, step by step

1. Deploy. This is where armour and appearance unlocks, so change your outfit before you leave rather than carrying the default through the level.
2. Talk to Koda. He is the operator on comms and the objective only advances after the conversation.
3. Take the lobby stairs to the second-floor reception. This is the first proper objective marker.
4. Build the portal at second-floor reception. The portal sends inventory contents back to base, and it is your only one for most of the level.
5. Clear the room where Uchisusari attacks, then look at the floor. A shotgun is lying there, and it is the biggest power spike in the demo.
6. Search the special diseases ward for five messages written in blood. All five must be read before the north-east door opens.
7. Push through the connecting corridor. It is a narrow space with enemies on both sides; a shotgun or a grenade clears it faster than trading shots.
8. Take the east door, then loop around to the nurses' station. You cannot walk straight in — the route doubles back, and the PC inside is what unlocks the next objective.
9. Return to the connecting corridor and take the far door to the operating theatre. The event triggers on entry.
10. Examine the operating table. This starts the boss fight.

The portal at step four deserves a note. Because it is the only one you get for most of the level, dumping materials into it the first time you pass is worth more than carrying them, and the game does not warn you that the next one is far away.

The shotgun you will walk past

The room where you fight Uchisusari is also the room with the shotgun, and the fight itself is distracting enough that the pickup gets missed. It sits on the floor rather than in a container, so it does not show up as a chest marker.

Taking it changes the rest of the demo. The connecting corridor at step seven is built for a close-range weapon, and the boss fight is more manageable with something that does burst damage rather than the starting handgun's 44 attack.

The boss at the end

The fight is Shirayamigata, and it is a loop rather than a race. Knock off roughly a tenth of its health and it releases an omnidirectional light attack — you survive that by standing behind a pillar, not by running.

After the light clears, the shadowless lamps on its back open. Breaking all of them is what actually damages the boss, and then the cycle starts again. Ammunition spent on the body during the lamp phase is wasted.

The demo does not let you bring much ammunition in, so the practical advice is to skip fights on the way to the operating theatre. The corridor ambush is the one place worth spending shells.

Systems the demo hands you

Three mechanics appear in the hospital and then stay for the whole game. The scanner, on its own key, marks objects around you: the colour tells you what kind of thing it is and the number of bars tells you how far away it is. Use it in every room, because materials and hidden objects do not render as obvious loot.

Half-anomalization is the second. Drop below a health threshold and Reona partially transforms, which strengthens her skills and regenerates MP on its own. Holding the attack input drains her HP deliberately to buy more MP — the demo explains this once and never again.

The third is the portal at second-floor reception. It banks inventory contents, and the demo only gives you one, which turns every later room into a decision about what to carry.

Where your first OV goes

The demo gives you enough OV to feel the Workshop but not enough to finish a tree, which is deliberate. The two purchases that change the hospital run are ammunition capacity and one weapon tier, in that order.

Do not buy armour first. The numbers are small, the hospital is short, and a single weapon tier does more for the boss than every armour piece the demo offers combined.

If you intend to buy the full game, treat the demo's OV as a rehearsal rather than a head start — none of it transfers, and the upgrade prices in the retail build are the same ones you see here.

What carries over

Progress does not transfer to the full game. That much is stated plainly and repeated by everyone who has played both. The exception is worth knowing: an outfit set you develop in the demo can be carried into the release version.

The hospital also stays replayable after you beat the boss, which makes the demo a legitimate farming sandbox for Workshop practice. Players who want to understand the upgrade ladder before spending real money should run the level twice rather than once.

What the demo does not show

It does not show the apartment block with inverted gravity, the shopping street, or any zone past the hospital, and it does not show the four bosses that come later. It also does not show the game at its most open — the demo is the most linear section by design, because it is teaching the loop.

What it does show is the parts that decide whether you will like the game: the extraction tension, the ammunition economy, the parry timing and the Workshop. If those four feel right in the hospital, the full game is more of the same with better scenery.