Written by Claude (Opus 5.5) from the run's own logs (events.jsonl, episode.json, results.json,
interview.md); it is a reading of the run, not part of its score.
- Model: Gemini 4 Argon (
google/gemini-4-argon) on OpenRouter, served only by Google AI Studio (no fallbacks), reasoning medium, output limit 32,768 tokens - Benchmark: Oasis by the Sea construction, version 1.6.3, from the save the human reference game started from; 33 min 20 s of game time (60,000 ticks) at speed 40, the length of the person's game; no playbook
- Run ea8f9dd6, series 20261014T052609-5e4af526, 2026-10-14: Gemini's second game on this map, a new series with no memory of the first, played on the latest version (the first game, series 20261013T170242-f04ff873, played 1.5.1). The map's score for Gemini is the mean of the two.
Result
| This game | First game | The person | Left alone | |
|---|---|---|---|---|
| Net worth | 13,603 | 9,231 | 19,513 | 1,220 |
| Gold | 4,430 | 2,867 | 18,304 | |
| Stored goods, at the sell price | 9,173 | 6,364 | 1,209 | |
| Population / housing | 171 / 194 | 154 / 242 | 202 / 202 | |
| Popularity | 54 (+9 next month) | 84 | 100 |
A full-budget score: the run used all 2,000 game seconds. Net worth grew by 12,383 over leaving the game alone, 68% of the person's 18,293 and the most of any game on this map, against 8,011 in the first game. The score is about 68.0, the highest on this map, against 51.0. The stored goods are 260 iron (5,980), 495 bread (1,980) in four granaries, 151 stone (1,057), 126 wood (126) and 3 flour (30). It built no weapon workshops.
How the game went
The opening, 0 to 9 minutes. The marketplace, two woodcutters and an iron mine at the start, three stockpile piles at 0:16, 100 wood bought at 0:32 and 1:42 and smaller lots after, four iron mines at 1:26 and three at 2:30, hovels at 1:02, 2:12 and 4:35, a quarry and a tether at 5:06, a mill at 5:58, and two iron mines and two bakeries at 8:32. Several orchards and wheat farms found no room on the oasis grass at 3:01 to 6:41. Taxes went to high at 4:29 and none at 8:05. Gold fell to 0 at 4:30 and read 106 or less at every three-minute mark from 6 to 18 minutes; it sold iron in fives and tens to keep building.
Bakeries, 9 to 22 minutes. Bakeries in ones to fours at 8:58, 10:00, 10:53, 12:01, 12:25, 13:54, 16:31, 17:18, 19:00, 19:30, 20:27, 21:27 and 21:54, mills to four, quarries to five with tethers, iron mines to thirteen by 13:01, hovels in twos, three more stockpile piles at 16:58 and three granaries at 20:13. At 12:38 to 12:55 and again at 17:49 and 21:17 it demolished bakeries and other buildings that, it said in its interview, had closed off its quarries and ox tethers so stone could not be carried. The population rose from 63 at 9 minutes to 122 at 21; taxes moved between none, average and a small bribe, and rations between full and extra.
Mills and woodcutters, 22 to 33 minutes. Woodcutters in twos and fours from 21:54 (28 in all), mills at 23:34, 26:28, 29:15, 30:18 and 32:00 (sixteen in all), tethers to twelve, more demolitions at 26:15 to 27:38 to make room, and high taxes from 23:03. Bread piled up, from 92 at 21 minutes to 495 at the end, and gold rose to 4,430. Popularity fell from 90 at 21 minutes to 54; in the last seconds it set no taxes and double rations.
| Game minute | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 27 | 30 | End |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Net worth | 1,350 | 615 | 728 | 1,144 | 1,394 | 2,228 | 3,004 | 4,536 | 6,310 | 8,886 | 11,254 | 13,603 |
| Gold | 946 | 200 | 106 | 40 | 20 | 6 | 0 | 526 | 1,298 | 2,162 | 3,195 | 4,430 |
| Iron | 0 | 1 | 10 | 36 | 45 | 75 | 94 | 129 | 160 | 194 | 226 | 260 |
| Stone | 25 | 25 | 25 | 25 | 33 | 57 | 63 | 87 | 103 | 119 | 143 | 151 |
| Food | 46 | 36 | 32 | 0 | 11 | 17 | 76 | 92 | 144 | 337 | 435 | 495 |
| Population | 3 | 26 | 49 | 63 | 68 | 80 | 92 | 122 | 136 | 145 | 152 | 171 |
| Popularity | 95 | 100 | 86 | 59 | 62 | 60 | 88 | 90 | 88 | 76 | 64 | 54 |
Up to 30 minutes the net worth row counts gold, wood, stone, iron and food (at 4) as the recording logs them; flour is left out.
Beside its first game
| This game (1.6.3) | First game (1.5.1) | |
|---|---|---|
| Net worth | 13,603 | 9,231 |
| Bakeries / mills / wheat farms | 27 / 16 / 5 | 17 / 3 / 2 |
| Iron mines / quarries / tethers | 13 / 5 / 12 | 13 / 4 / 18 |
| Popularity buildings | none | 15 breweries, 7 inns, 8 chapels, a church, a cathedral |
| Population / popularity | 171 / 54 | 154 / 84 |
| Cost | $1.58 | $1.25 |
Both games ran on bread and iron. The first spent on inns and religion to carry high taxes and ended at popularity 84; this one put that money into more bakeries and more than five times the mills, kept its bread rather than eating it all, and ended 4,372 higher in net worth with 17 more people.
What held it back
- Broke for twelve minutes. Gold was near zero from 6 to 18 minutes while it built, and the market was its only source of building money: 515 wood bought.
- Buildings in the way. Bakeries placed around its quarries closed them off; it spent 15
demolish_buildingcalls clearing them and other buildings. - Popularity let go. No inn or religion this time; high taxes from 23:03 took popularity from 90 to 54, a tenth of the score.
Market
515 wood and 55 cheese bought for 2,500 gold, and 40 iron and 10 stone sold for 990: 1,765 net worth lost against the sell price on the purchases (1,545 on wood at 4 gold, worth 1; 220 on cheese). Selling at the sell price leaves net worth unchanged. These are units at the market's fixed prices.
Cost and speed
33 turns, 253 tool calls (9 waits), 1.79 million tokens and $1.577 billed by OpenRouter (preparation $0.043, play $1.361, compaction $0.173). The interview cost $0.033 more, with 35,963 of its 42,192 tokens read from the cache. The agent run took 53.3 real minutes, 21.2 of them waiting for the model; the context was compacted four times (151 seconds). All 33 requests read the prompt cache, 85.2% of the input tokens.
The interview
Gemini called 70% of the person's net worth "a solid outcome" and put the rest down to three things: it
held its bread chain to what the oasis grass could grow instead of buying wheat, it ran high taxes and
extra rations where the person used the fear factor with a church and cathedral, and it fitted fewer
quarries. Playing again, it would buy wheat for 45 to 60 bakeries, use bad things and religion, zone the
quarries apart from the bakeries, and keep idle peasants under 24. It called the benchmark "one of the
best-designed, most practical game benchmarks I have encountered", and asked for a check that a ring of
buildings does not close off a courtyard, a count of each building type in status, and noted that the
first placements of a second build_structure call in one turn sometimes came back not_selected.
For the harness
- A stale map probe on the game machine. Like every game of this batch on Oasis by the Sea and
Large Barren Desert, this game ran a
crusader_probebuilt from 1.5.0's sources. It was built on 2026-10-13 at 21:28 UTC as a 1.5.0 game started. The 1.6.3 sync then copied sources that matched by hash, and Ninja found nothing to rebuild. The probe's only change since 1.5.0 is 1.5.4's check that tells trees from cacti, somap_overviewcounted cacti as tree groves.find_sitescounts trees from the reader's tile data and was right. Everything else this game played was 1.6.3, and the game stands as played. Itsmap_overviewlisted two cactus patches as groves beside the real ones, 23 at (349, 398) and 10 at (355, 365); it built no woodcutter there. - The run played on this checkout's version, 1.6.3 (commit 1d0c697), and records it; Oasis's round was already 1.6.3.
- Closed courtyards. Each building passed the one-open-side check, but a group of bakeries closed off quarries and ox tethers as a ring; Gemini found it and demolished them. Its suggested fix, a connectivity check from the open sides to the keep, is not in the harness.
build_structurereturnednot_selectedfor the first placements of a call at 3:01, 24:11, 30:34 and 32:15; other placements that did not go through: orchards and wheat farms at 3:47 and 6:41, hovels at 14:16 and 15:03 (unverified), bakeries at 18:09 and 19:00 and two pitch rigs at 32:00.- Three
demolish_buildingcalls hit nothing of its own (17:52, 26:03, 26:09) and one aimed over the toolbar (26:15); one iron sale of 5 at 14:34 was refused before clicking. - The game saved correctly at the end ("gemini 4 argon 1-6-3 ea8f9d").
