Turn	Date	Population	Funds	City score	Crime	Pollution
0	Jan 1972	76,160	$20,000	285	92	65
1	Apr 1972	73,280	$15,422	530	92	65
2	Jul 1972	67,960	$14,298	530	73	64
3	Oct 1972	59,800	$13,278	530	70	62
4	Jan 1973	55,860	$10,008	427	70	62
5	Apr 1973	48,640	$9,915	427	63	59
6	Jul 1973	43,960	$8,782	427	52	56
7	Oct 1973	38,220	$8,197	427	52	56
8	Jan 1974	33,980	$7,436	350	44	56
9	Apr 1974	29,500	$7,436	350	41	49
10	Jul 1974	26,960	$7,436	350	41	50
11	Oct 1974	22,940	$7,280	350	36	50
12	Jan 1975	20,360	$6,049	326	33	46
13	Apr 1975	17,980	$5,948	326	33	43
14	Jul 1975	16,420	$5,873	326	52	43
15	Oct 1975	14,980	$5,857	326	48	44
16	Jan 1976	14,420	$4,332	346	48	46
17	Apr 1976	13,680	$4,332	346	45	46
18	Jul 1976	12,860	$3,998	346	42	46
19	Oct 1976	12,280	$988	346	42	45
20	Jan 1977	11,520	$303	383	38	45
21	Apr 1977	10,580	$303	383	37	45
22	Jul 1977	9,500	$303	383	37	46
23	Oct 1977	8,860	$303	383	36	43
24	Jan 1978	8,560	$197	420	35	43
25	Apr 1978	7,840	$197	420	35	44
26	Jul 1978	7,700	$197	420	35	45
27	Oct 1978	7,420	$197	420	34	44
28	Jan 1979	6,380	$197	401	34	44
29	Apr 1979	6,080	$197	401	34	48
30	Jul 1979	5,620	$197	401	32	45
31	Oct 1979	5,480	$197	401	32	45
32	Jan 1980	6,220	$197	515	32	46
33	Apr 1980	8,680	$89	515	32	47
34	Jul 1980	8,840	$89	515	32	48
35	Oct 1980	7,960	$89	515	35	48
36	Jan 1981	7,180	$761	508	34	45
37	Apr 1981	6,520	$761	508	34	44
38	Jul 1981	5,460	$761	508	33	44
39	Oct 1981	5,320	$23	508	33	46
40	Jan 1982	6,960	$23	597	33	48

Status	Kind	Check	Detail
pass	step	environment	Environment check (snapshot, engine, key)
pass	step	launch	Launch run-city as a detached process
pass	step	supervise	Supervise in the foreground until run-city exits
pass	step	render	Timelapse video rendered
pass	step	notes	Append Notes to summary.md
pass	code_check	outputs-exist	all present
pass	code_check	sim-reached-deadline	ended Jan 1982 after 40 turns; scenario verdict True
pass	code_check	decisions-logged	40 rows for 40 turns
pass	code_check	llm-turns-valid	0/40 model turns failed
pass	code_check	video-decodes	duration 36.9s
pass	code_check	limits-respected	9.8 wall-minutes (model budget 45.0 min)
fail	judge	scenario-goal	LOST: Average crime 33 (goal < 60), population 6,120 (floor 25,000); engine verdict: won (score 0 / threshold 1)
pass	checklist	notes-explain-outcome	summary.md Notes section cites turn 1 police strategy, turn 20 power crisis pivot, turns 28-30 bankruptcy, and final turn concession on population target
pass	checklist	player-matches-request	result.json shows player=gpt56terra model=openai/gpt-5.6-terra task=detroit seed=1 matching the runbook parameters
pass	checklist	no-silent-outage	run.log shows 40 consecutive successful turns with 0 LLM failures; no gaps or error stretches observed

GPT-5.6 Terra plays Detroit 1972

The city over time