one dataset · paper, tables, graph, wiki
simgrammar the grammar of simulation

parts

6 mechanics, as Suck Up! does them

core · 2

narrative & generation

Generative content on demand

A hosted language model (ChatGPT from OpenAI per the store page) generates each resident's reply and in-character decision in real time from its personality prompt and the conversation.

social relations

Natural-language interaction

The player talks to residents with a real microphone, and the store page says responses depend on tone and strategy.

supporting · 4

multiplayer & persistence

Content sharing

Steam Workshop shares player-made characters and full neighborhoods.

control & automation

Direct avatar control

agents & behavior

Personality traits

Each resident has an authored personality and behaviors that condition the model, and players can write their own.

progression & goals

Scenario objectives

Modes include Love Bites (split up couples at a Valentine's Day party) and Mic Drop (rap battles against characters).

core loop

pick a disguise -> knock on a resident's door -> speak a pitch aloud -> the model replies in character and weighs trust -> get invited in and feed, or get refused -> next house

design notes

At runtime a language model plays each resident: the player's spoken words go to a hosted model (the Steam page lists ChatGPT from OpenAI; the December 2023 terms name GPT 3.5 and Llama 2 and meter use in tokens) along with the resident's authored personality, and its reply decides whether the player has earned entry. The challenge is social engineering against characters whose personalities are meant to challenge players, so disguises (knight, superhero, a previous victim) work as context that changes the model's judgment. Players author new residents' personalities and whole neighborhoods and share them on Steam Workshop. It is a boundary case: the persuasion is judged by the model rather than by a simulated social state.

appears in

the paper, 3 sections · 2 chapters · 1 episode
paper

3. The catalog

linked in this section of the paper

paper
paper

5. The structure of the design space

linked in this section of the paper

paper
paper

Appendix A. Game catalog

linked in this section of the paper

paper
catalog

The catalog

listed with its year, developer, subgenre, and number of mechanics

book
ch 2

Chapter 2. Six layers

named in the text

book
ch 7

Chapter 7. What shipped

linked from the text

book
ep 6

What AI shipped

on screen at 0:00 cold open

episode

claims

1 with sources
c01medium

Suck Up! was publicly playable through Proxima's own launcher before its Steam 1.0 release on 2025-10-01; the site's terms, last updated 2023-12-05, already metered AI-model use in tokens, and the site calls the launcher build early access.

Last Updated: December 05, 2023

Page header

src-proxima-2023-suck-up-terms, src-proxima-2026-suck-up-site, src-steam-2026-suck-up

sources

3
(2026). Suck Up! on Steam. Steam
(2026). Suck Up! official site. playsuckup.com
(2023-12-05). Suck Up! Terms of Service. playsuckup.com

provenance

runs in log/runs
2026-10-24
created2026-10-24-catalog-gdcatalog
2026-10-28
reviewed2026-10-28-verify-ai-charactersverification