Producers

Cost of the n-th copy: base cost × 1.15^(n−1). Output: base output × multipliers. The first 6 are chess pieces shown on the board (at most 8 pawns, 2 knights, 2 bishops, 2 rooks, 1 queen, 1 king).

#	Producer	Id	Base cost	Base output /s	Cost / output	Description
1	Pawn	pawn	15	0.1	150 s	Small, stubborn, dreams of becoming a Queen.
2	Knight	knight	100	1	100 s	Jumps right over problems.
3	Bishop	bishop	1,100	8	138 s	Only sees the world diagonally.
4	Rook	rook	12,000	47	255 s	Solid. Loves open files.
5	Queen	queen	130,000	260	500 s	Goes wherever she wants, whenever she wants.
6	King	king	1.40 M (1.4e6)	1,400	1,000 s	Slow, but decisive in the endgame.
7	Chess Club	club	20.0 M (2.0e7)	7,800	2,564 s	Clocks ticking all night long.
8	Grandmaster	gm	330 M (3.3e8)	44,000	7,500 s	Has already seen your move. In 1958.
9	Engine	engine	5.10 B (5.1e9)	260,000	19,615 s	Calculates 40 moves ahead without breaking a sweat.
10	Neural Network	neural	75.0 B (7.5e10)	1.60 M (1.6e6)	46,875 s	Learned chess by playing against itself.
11	Quantum Clock	quantum	1.00 T (1.0e12)	10.0 M (1.0e7)	100,000 s	Plays every possible move at once.
12	Timeline	timeline	14.0 T (1.4e13)	65.0 M (6.5e7)	215,385 s	Replays yesterday’s games to win tomorrow’s.
13	Antimatter Board	antimatter	170 T (1.7e14)	430 M (4.3e8)	395,349 s	Every piece meets its anti-piece. Boom.
14	Tactical Prism	prism	2.10 Qa (2.1e15)	2.90 B (2.9e9)	724,138 s	Splits light into winning combinations.
15	Caïssa’s Die	luck	26.0 Qa (2.6e16)	21.0 B (2.1e10)	1.24 M (1.2e6) s	There is no luck in chess. Except here.
16	Fractal Board	fractal	310 Qa (3.1e17)	150 B (1.5e11)	2.07 M (2.1e6) s	Every square holds an entire chessboard.
17	Creator’s Console	console	71.0 Qi (7.1e19)	1.10 T (1.1e12)	64.5 M (6.5e7) s	> give tempo 999999999
18	Chess Multiverse	multiverse	12.0 Sx (1.2e22)	8.30 T (8.3e12)	1.45 B (1.4e9) s	In a parallel universe, the Bishop moves straight.
19	Galactic Cortex	cortex	1.90 Sp (1.9e24)	64.0 T (6.4e13)	29.7 B (3.0e10) s	A nebula pondering its next move.
20	Caïssa	caissa	540 Sp (5.4e26)	510 T (5.1e14)	1.06 T (1.1e12) s	The goddess of chess herself. She plays alongside you.

Cumulative cost

Buying k copies when you already own n costs base × 1.15^n × (1.15^k − 1) / 0.15.

Owned	Price of the next one (× base cost)
0	×1
10	×4.05
25	×32.92
50	×1,083.66
100	×1.17 M (1.2e6)
150	×1.27 B (1.3e9)
200	×1.38 T (1.4e12)
300	×1.62 Qi (1.6e18)
400	×1.90 Sp (1.9e24)
500	×2.23 No (2.2e30)