- Anomalous Coffee Machine 2 word list: verified inputs that produce liquids and transformations on the sequel's keypad.
- Core rule: type any word, get a liquid — effects stack and interact across a session.
- Start safe: baseline words like coffee and water before escalating to transformation inputs.
- Secret triggers: repeated words, word chains, and contradictory pairs unlock hidden outcomes.
- Scale: the series supports 730+ discoverable words and 680+ transformations, so this list is a starting point.
How the ACM2 Word System Works
Anomalous Coffee Machine 2, released on Steam in December 2025 by HoruBrain, keeps the signature SCP-294-style mechanic at its core: you type a word into the keypad, and the machine dispenses a liquid matching that word. The character drinking it then reacts with visual, physical, or behavioral changes that stack over the session. Unlike most horror visual novels, progression is driven almost entirely by vocabulary experimentation rather than fixed choices.
The machine responds to far more words than the story suggests. Everyday nouns, abstract concepts, materials, and even developer jokes all produce results. Because the first game officially supported over 730 discoverable words and 680+ transformations, the sequel's word pool is similarly deep, and no public list captures everything — discovery is the point.
Before typing exotic words, run a control test. Input coffee first — the machine's "normal" behavior — then water to reset the subject's state. This gives you a reference point for judging how far each new experiment pushes the character.
Verified Word List: Core Inputs & Effects
The table below gathers verified input words based on the original machine's documented behavior, which carries into the sequel's baseline vocabulary. Effects are grouped by type so you can plan a session around a specific outcome category.
| Word | Output Liquid | Effect Type | What Happens |
|---|---|---|---|
| coffee | Regular Coffee | Baseline / Safe | Default brew, no unusual effect; ideal control test |
| water | Water | Neutral / Cleansing | Resets or dilutes the subject's accumulated state |
| milk | Milk | Color Change | Lightens and softens the character's appearance |
| rainbow | Rainbow Liquid | Color Change | Cycles the character's color palette continuously |
| gold | Liquid Gold | Special Outcome | Rare shimmering drink with a memorable visual transformation |
| blood | Blood | Body Transformation | Dark red liquid; unsettling reactions, pushes toward hidden events |
| juice | Juice | Mild Effect | Light flavor-style effect; low session impact |
Word category coverage — most inputs fall into one of these families:
| Category | Example Words | Session Impact |
|---|---|---|
| Baseline drinks | coffee, water, espresso | Low; used for control and resets |
| Color changes | milk, rainbow | Visual only; safe to chain |
| Body transformations | blood, growth/shrink words | High; effects stack and interact |
| Special outcomes | gold, ending-gated words | Rare scenes; often story-relevant |
| Secret / dev words | horubrain, word chains | Easter eggs and hidden dialogue |
Drinks in a sequence interact. A transformation word followed by a second transformation word can produce hybrid or unstable forms — sometimes intentionally, sometimes not. If you want a clean result, stabilize with water between experiments.
Secret Words & Hidden Triggers
Beyond the standard vocabulary, the machine hides a layer of secret inputs planted by the developer. These are the triggers the community talks about most, and they carry over conceptually into ACM2's expanded word pool.
Developer Name Word
- Type horubrain into the keypad
- Machine acknowledges its creator
- Unique screen effect, then normal service resumes
Coffee Word Chain
- Enter espresso, latte, mocha in one session
- No transformation in between
- Unlocks a bonus caffeine-tolerance joke dialogue
Repeated Identical Word
- Same word three times in a row
- Machine glitches and comments on your persistence
- UI briefly corrupts, then serves a "stabilized" result
Two more advanced triggers worth knowing:
| Trigger | Condition | Result |
|---|---|---|
| Contradictory word pairs | Growth-type word followed immediately by shrink-type | Hybrid or unstable forms, among the rarest visuals |
| Ending-gated words | Reached at least one major ending first | Rejected dismissively before; unlock late-game story forms after |
The series supports mods with custom words and events, so the word list is effectively open-ended. Community mod packs can add inputs the base game never shipped — check the official Discord (discord.gg/horubrain) for curated mod recommendations.
Word Discovery Workflow: Build Your Own List
Rather than hunting for a complete list, use a repeatable workflow to catalog words efficiently across playthroughs.
Establish a Baseline
Start every session with coffee, then water. Note the character's default state so you can measure how far each new word pushes her.
Test One Category at a Time
Group your candidate words by expected category (color, transformation, special) and test within one group per session. This keeps stacking interactions predictable.
Save Before Risky Inputs
Save right before feeding a new word to the machine. If the outcome derails your session state, restore and re-test under controlled conditions.
Log Dialogue Cues
The character's reaction after each drink is your feedback loop. Responses hint at which hidden events or ending route the session is building toward — record them alongside each word.
Escalate and Cross-Pollinate
Once single words are mapped, test chains, repeats, and contradictory pairs. This is where the rarest outcomes live.
There is no punishment for experimenting. Type freely — rejected words simply get a dismissive line from the machine, and every rejection narrows the search space.
Session Checklist & Word Tier Priority
Prioritize high-value words first. Based on community feedback and hands-on testing, this tier ordering gives the best experience per minute spent typing.
| Tier | Words | Why Try Them First |
|---|---|---|
| S — Must-Try | rainbow, gold | Most visually spectacular results in the game |
| A — Great Effects | blood, coffee | Dramatic reactions; coffee is the essential baseline |
| B — Solid | milk, water | Utility picks for softening and resetting state |
| C — Situational | juice | Fun once, low impact on the session |
Word Discovery Session Goals:
- Run coffee and water baseline tests
- Try both S-tier words (rainbow, gold)
- Test one contradictory word pair
- Trigger the repeated-word glitch three times in a row
- Log every new word and its dialogue reaction
- Attempt one ending-gated word after a major ending
If you played the original, your instincts transfer directly — but do not assume every ACM1 word behaves identically in the sequel. Re-test your favorites early; the machine's expanded pool includes revised reactions for returning vocabulary.
FAQ
Q: Is there a complete Anomalous Coffee Machine 2 word list?
No public list covers everything. The series supports 730+ discoverable words and 680+ transformations, and ACM2 adds mod support for custom words. Treat any published list — including this one — as a verified starting point, not an exhaustive catalog.
Q: Do words from the first Anomalous Coffee Machine work in ACM2?
Most core vocabulary concepts carry over, and the baseline inputs like coffee, water, milk, and blood behave consistently. However, reaction dialogue and some transformation outcomes have been expanded, so re-test familiar words rather than assuming identical results.
Q: What is the best word to type first in Anomalous Coffee Machine 2?
Start with coffee. It is the machine's baseline brew with no unusual effects, giving you a control reference. Follow with water to learn the reset mechanic before attempting transformation words.
Q: How do I unlock ending-gated words?
Reach at least one major ending first. Before that, the machine rejects these words with a dismissive line. After an ending, the same inputs unlock special late-game forms tied to the story's final themes.