Skirmish and Multiplayer Map · The Core Contingency

The Barrier Reef

The Barrier Reef is a Total Annihilation map on Green planet, 9,728 × 9,728 pixels, with 10 start positions.

19 X 19 Body of water separates two land masses. Great underwater starts!

Map of The Barrier Reef with its start positions — Start position, numbered by player · Map 9,728 × 9,728 pixels · Scroll or pinch on the map to zoom; drag to move. Hover over a feature or a resource for its details.

Start Position Fairness

Uneven with 2 players. The poorest start makes 75.37 metal a second from its deposits, 1.8% less than the richest, which makes 76.73. The most cramped start has 41% less flat land than the roomiest.

Start	Deposits	Metal a Second	Vents	Area	Flat Land	Water	Nearest Enemy
1	40	75.37	0	44.7%	6%	36.9%	10,615 pixels
2	43	76.73	0	55.3%	10.3%	43.2%	10,615 pixels

Lopsided with 3 players. The poorest start makes 38.88 metal a second from its deposits, 39% less than the richest, which makes 63.9. The most cramped start has 80% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	20	38.88	25.6%	3.9%	20.4%	3,662 pixels
2	33	63.9	43.2%	10.3%	31.4%	8,272 pixels
3	30	49.31	31.2%	2.1%	28.3%	3,662 pixels

Lopsided with 4 players. The poorest start makes 31.37 metal a second from its deposits, 26% less than the richest, which makes 42.53. The most cramped start has 66% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	15	31.37	16%	3.9%	11.1%	3,662 pixels
2	17	35.97	23%	6%	16.1%	4,680 pixels
3	26	42.21	28.9%	2.1%	25.9%	3,662 pixels
4	25	42.53	32.2%	4.3%	26.9%	4,680 pixels

Lopsided with 5 players. The poorest start makes 10.24 metal a second from its deposits, 75% less than the richest, which makes 41.65. The most cramped start has 77% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	5	10.24	4.9%	3.1%	1.2%	1,931 pixels
2	17	35.97	23%	6%	16.1%	4,680 pixels
3	19	30.16	21.1%	1.5%	19%	2,238 pixels
4	20	34.07	29.7%	4.3%	24.5%	4,680 pixels
5	22	41.65	21.3%	1.4%	19.3%	1,931 pixels

Lopsided with 6 players. The poorest start makes 10.24 metal a second from its deposits, 75% less than the richest, which makes 41.65. The most cramped start has 72% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	5	10.24	4.9%	3.1%	1.2%	1,931 pixels
2	11	23.39	17.3%	3.2%	13.5%	2,263 pixels
3	19	30.16	21.1%	1.5%	19%	2,238 pixels
4	16	28.96	26%	2.1%	23.2%	2,652 pixels
5	22	41.65	21.3%	1.4%	19.3%	1,931 pixels
6	10	17.69	9.3%	5%	3.9%	2,263 pixels

Lopsided with 7 players. The poorest start makes 10.24 metal a second from its deposits, 66% less than the richest, which makes 30.16. The most cramped start has 100% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	5	10.24	4.7%	3.1%	0.9%	1,931 pixels
2	11	23.39	17.3%	3.2%	13.5%	2,263 pixels
3	19	30.16	21.1%	1.5%	19%	2,238 pixels
4	11	20.81	13.8%	2.1%	11.2%	2,652 pixels
5	11	20.84	11.9%	1.4%	10%	1,931 pixels
6	10	17.69	9.3%	5%	3.9%	2,263 pixels
7	16	28.96	21.9%	0%	21.4%	4,337 pixels

Lopsided with 8 players. The poorest start makes 10.24 metal a second from its deposits, 65% less than the richest, which makes 28.96. The most cramped start has 100% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	5	10.24	4.7%	3.1%	0.9%	1,931 pixels
2	9	19.36	12.2%	3.2%	8.4%	2,263 pixels
3	11	18.21	11.5%	1.5%	9.6%	2,238 pixels
4	11	20.81	13.8%	2.1%	11.2%	2,652 pixels
5	11	20.84	11.9%	1.4%	10%	1,931 pixels
6	10	17.69	9.3%	5%	3.9%	2,263 pixels
7	16	28.96	21.9%	0%	21.4%	4,337 pixels
8	10	15.98	14.7%	0%	14.4%	4,737 pixels

Lopsided with 9 players. The poorest start makes 10.24 metal a second from its deposits, 54% less than the richest, which makes 22.01. The most cramped start has 100% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	5	10.24	4.7%	3.1%	0.9%	1,931 pixels
2	9	19.36	11.2%	3.2%	7.4%	2,263 pixels
3	8	15.32	10.3%	1.5%	8.4%	2,238 pixels
4	9	16.78	10.5%	2.1%	8%	2,652 pixels
5	9	16.89	9.3%	1.4%	7.6%	1,931 pixels
6	10	17.69	9%	5%	3.6%	2,263 pixels
7	10	17.83	14.3%	0%	14%	1,886 pixels
8	10	15.98	14.5%	0%	14.2%	4,737 pixels
9	13	22.01	16.2%	0%	15.9%	1,886 pixels

Lopsided with 10 players. The poorest start makes 10.23 metal a second from its deposits, 47% less than the richest, which makes 19.36. The most cramped start has 100% less flat land than the roomiest.

Start	Deposits	Metal a Second	Area	Flat Land	Water	Nearest Enemy
1	5	10.24	4.7%	3.1%	0.9%	1,931 pixels
2	9	19.36	8.9%	3.2%	5.2%	2,263 pixels
3	7	13.3	7%	1.5%	5.2%	2,238 pixels
4	9	16.78	10.5%	2.1%	8%	2,652 pixels
5	9	16.89	8.8%	1.4%	7%	1,931 pixels
6	10	17.69	8.8%	5%	3.4%	2,263 pixels
7	10	17.83	14.3%	0%	14%	1,886 pixels
8	8	12.92	10.8%	0%	10.5%	4,058 pixels
9	9	16.86	10.7%	0%	10.6%	1,886 pixels
10	7	10.23	15.4%	0%	15.2%	3,198 pixels

Each part of the map, and each deposit and vent, counts for the start position nearest to it in a straight line; one exactly as near to two starts counts half to each. Metal is what the Metal Extractor makes on each deposit, or the Underwater Metal Extractor where the deposit lies in deep enough water: 0.001 times the total, over the cells under it, of each cell's metal plus one. The richest deposits are taken first, and no two extractors overlap. A vent counts where the Geothermal Powerplant can be built over it. Flat land is ground the Kbot Lab could be built on: inside the map, out of the water, with no more than 10 height units between its lowest and highest ground, and clear of features that can't be destroyed (trees and other features that can be destroyed count as cleared). Area, flat land and water are shares of the whole map, leaving out any void cells, and the nearest enemy is the distance in map pixels to the nearest other start. The verdict goes by the larger of two gaps between the best and the worst start, in metal and in flat land: under 10% is even, under 25% fairly even, under 50% uneven, and 50% or more lopsided.