u/Spiritual-Rest-9777

This will be a bit out of the ordinary for this sub but I wanted to pick your brains. Hoping it will be interesting for you. Social deduction games (Werewolf, Among Us, Mafia) run on one engine: humans reading and deceiving other humans. The tells, the bluffing, the table going quiet - that is the whole game. I have spent a while building a single-player one, and the core problem turned out to be: when you delete the other humans, what actually replaces that? Gnosia is the obvious prior art, but there is surprisingly little written about the nuts and bolts. A few things I have learned the hard way:

1. Hidden state has to leak through behaviour, never through a number. Under the hood every NPC holds a suspicion value toward every other NPC (a 12-way web) plus a read on the player. The instant I surfaced any of those numbers, deduction collapsed into spreadsheet-reading. What worked was forcing all of it out through dialogue and action instead: you overhear a pair arguing, you watch a vote swing, you notice who stopped defending whom. The player reconstructs the web; the game never shows it.

2. The killer problem is "is this a clue or a bug?" When an NPC acts suspicious, the player cannot tell if it is an authored tell or my code misbehaving. If it reads as random, trust in the whole system dies. I now treat legibility as a first-class, separately-tested property - a behaviour that is "correct" but reads as noise is a failure, even if the sim is doing exactly what I intended.

3. Information scarcity + time pressure stands in for social pressure. With no humans to sweat under questioning, the tension has to come from elsewhere: limited actions per day, a hard deadline (a blood test), and the cost of being wrong. That scarcity is what makes a read feel risky.

For those who have built deduction, bluffing, or "the NPC is hiding something" systems: how did you sell intentionality? What made an NPC opponent's behaviour read as thinking rather than rolling dice?

Social deduction games (Werewolf, Among Us, Mafia) run on one engine: humans reading and deceiving other humans. The tells, the bluffing, the table going quiet - that is the whole game. I have spent a while building a single-player one, and the core problem turned out to be: when you delete the other humans, what actually replaces that? Gnosia is the obvious prior art, but there is surprisingly little written about the nuts and bolts. A few things I have learned the hard way:

1. Hidden state has to leak through behaviour, never through a number. Under the hood every NPC holds a suspicion value toward every other NPC (a 12-way web) plus a read on the player. The instant I surfaced any of those numbers, deduction collapsed into spreadsheet-reading. What worked was forcing all of it out through dialogue and action instead: you overhear a pair arguing, you watch a vote swing, you notice who stopped defending whom. The player reconstructs the web; the game never shows it.

2. The killer problem is "is this a clue or a bug?" When an NPC acts suspicious, the player cannot tell if it is an authored tell or my code misbehaving. If it reads as random, trust in the whole system dies. I now treat legibility as a first-class, separately-tested property - a behaviour that is "correct" but reads as noise is a failure, even if the sim is doing exactly what I intended.

3. Information scarcity + time pressure stands in for social pressure. With no humans to sweat under questioning, the tension has to come from elsewhere: limited actions per day, a hard deadline (a blood test), and the cost of being wrong. That scarcity is what makes a read feel risky.

For those who have built deduction, bluffing, or "the NPC is hiding something" systems: how did you sell intentionality? What made an NPC opponent's behaviour read as thinking rather than rolling dice?

Social deduction games (Werewolf, Among Us, Mafia) run on one engine: humans reading and deceiving other humans. The tells, the bluffing, the table going quiet - that is the whole game. I have spent a while building a single-player one, and the core problem turned out to be: when you delete the other humans, what actually replaces that? Gnosia is the obvious prior art, but there is surprisingly little written about the nuts and bolts. A few things I have learned the hard way:

1. Hidden state has to leak through behaviour, never through a number. Under the hood every NPC holds a suspicion value toward every other NPC (a 12-way web) plus a read on the player. The instant I surfaced any of those numbers, deduction collapsed into spreadsheet-reading. What worked was forcing all of it out through dialogue and action instead: you overhear a pair arguing, you watch a vote swing, you notice who stopped defending whom. The player reconstructs the web; the game never shows it.

2. The killer problem is "is this a clue or a bug?" When an NPC acts suspicious, the player cannot tell if it is an authored tell or my code misbehaving. If it reads as random, trust in the whole system dies. I now treat legibility as a first-class, separately-tested property - a behaviour that is "correct" but reads as noise is a failure, even if the sim is doing exactly what I intended.

3. Information scarcity + time pressure stands in for social pressure. With no humans to sweat under questioning, the tension has to come from elsewhere: limited actions per day, a hard deadline (a blood test), and the cost of being wrong. That scarcity is what makes a read feel risky.

For those who have built deduction, bluffing, or "the NPC is hiding something" systems: how did you sell intentionality? What made an NPC opponent's behaviour read as thinking rather than rolling dice?

[supprimé]

Game Title: Deep Frost

Playable Link: https://aeongamesca.itch.io/deep-frost (password: halstrom)

Platform: Browser (HTML5 — no install, plays in-browser)

Description:

Deep Frost is a singleplayer social-deduction roguelike set in an Antarctic research station. Twelve named researchers, each with their own profession, personality, and grudges. A parasitic intelligence has wormed into the outpost and is wearing some of their faces. You have nine days to figure out who's still human, who's already been replaced, and whether the next door you open will be the one that kills you.

Inspired by Gnosia and The Thing (1982). Built solo in Godot 4.6. Every NPC has a daily routine, a rapport meter with you, and reacts to your accusations — accuse the wrong person publicly and the actual infected swap their patrol route to avoid you. The suspicion graph is the spine of the game; conversations, route changes, and voting all flow through it.

The free demo covers Days 1-3 (about 25-35 minutes for a first run, longer if you take notes). Full game launches on Steam this Halloween week.

Free to Play Status:

[x] Free to play

[x] Demo/Key available

[ ] Paid (Allowed only on Tuesdays with [TT] in the title)

Involvement: Solo developer — game design, programming, writing, audio integration, and most asset direction.

I sent my Carpenter-flavored Antarctic social-deduction roguelike out for the first deep-dive playtest from an outside reviewer. 90 minutes of careful play, transcript pulled, six new things to fix.

Quick frame: twelve named researchers, nine days at a failing Antarctic outpost. Something is wearing the crew's faces. Gnosia × The Thing (1982).

What he caught that I missed:

1. NPC dialogue is too uniform. "My vote keeps coming back to Lyra" lands the same way for every speaker. Adding a personality dial.
2. NPCs are too honest about suspicion. They literally say "my gut says Lucky Chris" out loud. In a real social-deduction beat that line gets hidden, hedged, or lied about depending on rapport. Building rapport-gated phrasing tiers.
3. Two NPCs broke a verbal agreement mid-vote ("we said Petra, both voted Garen"). Could be a real bug. Auditing the vote-resolution code this week.
4. Tracking 12 NPCs × 9 days overwhelms without an in-game notepad. Three playtesters have asked for this now. Going into a future patch — too big a HUD addition right now.
5. "You approach Torren — he accepts. Why?" Action-outcome text is too compressed. Rewriting the resolution lines.
6. All-caps in-game terms like "VERIFIED" need hover tooltips. Caps words without context read as system gibberish.

Verdict was 62/100 — generous in spots, not in others. He didn't reach the endgame, so the blood test + queen reveal beats (the two payoffs the whole design hangs on) weren't graded. He's running another pass offscreen.

What I learned: when a player starts narrating to themselves what a line meant, dialogue isn't narration anymore — it's evidence. That's the threshold I'm trying to push the whole game across.

Curious what's the worst social-deduction or horror-game UI mistake you've seen recently — feedback genuinely lands during this stretch.

Hi Community,

Solo devv launching on Steam October 23, 2026. Demo has been out for two weeks and I'd love a few more eyes on it before the public Steam demo opens Sep 25.

The game: Deep Frost — singleplayer social-deduction roguelike, Antarctic outpost, parasite copies the crew, you have 9 days to identify who's infected. Gnosia × The Thing (1982). Free, browser-playable, ~45 min per run.

What I'm looking for:

- Anyone willing to play through Day 1 → Day 4 (about 30 min)

- Recorded video walkthroughs are gold but written feedback is also welcome

- Especially: did the tutorial feel like enough? did the round-table vote land? did anything feel broken?

Demo (free, no install, password-gated for now):

https://aeongamesca.itch.io/deep-frost

Password: halstrom

Steam page (if you'd like to wishlist while you're there — wishlists genuinely matter for indie launch visibility):

https://store.steampowered.com/app/4675840/Deep_Frost/

I will reply to every comment + DM. If you send video or write up feedback, I'll send you a Steam key at launch as thanks.

Background: solo dev in Godot 4.6. One playtester sent a recorded video last week that uncovered four P0 bugs I'm fixing for v1.0.1. The criticism is the gift; this is exactly the moment to find more.

AI use: Some 2D art assets and dialog flavor drafts were generated/assisted with AI tools (Gemini), then hand-edited. Music, NPC behavior, code, and design are hand-built. Full disclosure is on the Steam page.

Thanks for reading.

— AeonGames Canada

Hi r/playmygame,

Solo dev here out of Canada. So of course i made a game called Deep Frost after a witner of 7 months 😛 After over a year of work, looking for honest feedback on the demo before launch.

Deep Frost — Twelve researchers on a failing Antarctic station. A parasite called the Thaw is copying them one by one. You have nine days to identify the infected, survive the blood test, and hold the station together long enough for the helicopter to return.

Think Gnosia × The Thing (1982). Everyone is lying, including (maybe) you.

- Singleplayer, no login required

- ~45 min per run, procedurally generated

- Browser-playable (no download) + Windows .exe

- Made in Godot 4.6

Play here: https://aeongamesca.itch.io/deep-frost (password: halstrom)

What I'd love feedback on:

1. Does the Day 1-2 ramp land, or does it feel confusing?

2. Is the roundtable vote tense, or does it feel like random NPCs voting?

3. Any dialog that dragged or felt repetitive?

4. Pacing: did you hit MOIRA's nag prompts, and did they feel right?

5. Any bugs — anything from soft-locks to UI quirks. Bonus points for save/load weirdness.

Happy to playtest yours in return — drop your link in a comment.

If you'd rather lurk than play but still want to follow along, there's a quiet devlog newsletter (1 email every few weeks): https://aeongames.ca/#newsletter — totally optional, no expectation.

— AeonGames