BaseCosts

This is a list of all base costs used by TTD.

NFO ID is the ID to use for action 0 feature 8 property 08.

Location is the address in the savegame structure.

Default value is the initial value used at the game start.

ID	NFO ID	Location	Default	Used for
0	0	4B34	100	miscellaneous
1	1	4B3A	100	build track
2	2	4B40	95	build road
3	3	4B46	65	place signal
4	4	4B4C	275	build bridge tile
5	5	4B52	600	build rail depot, also affects "build rail-waypoint" (*)
6	6	4B58	500	build road depot
7	7	4B5E	700	build ship depot
8	8	4B64	450	build tunnel unit
9	9	4B6A	200	build platform unit (per tile)
10	A	4B70	180	build platform fixed (per platform)
11	B	4B76	600	build airport tile
12	C	4B7C	200	build bus station
13	D	4B82	200	build lorry area
14	E	4B88	350	build dock, also affects "build buoy" (*)
15	F	4B8E	400,000	locomotive purchase
16	10	4B94	2000	waggon purchase
17	11	4B9A	700,000	aircraft purchase
18	12	4BA0	14,000	road vehicle purchase
19	13	4BA6	65,000	ship purchase
20	14	4BAC	20	plant tree
21	15	4BB2	250	raise/lower land, also affects "build foundation" (*)
22	16	4BB8	20	clear grass
23	17	4BBE	40	clear rough land, also affects "build/remove object" (*)
24	18	4BC4	200	clear rocks
25	19	4BCA	500	clear fields
26	1A	4BD0	20	remove tree
27	1B	4BD6	-70	remove track
28	1C	4BDC	10	remove signal
29	1D	4BE2	50	remove bridge tile, also affects "remove aqueduct" (*)
30	1E	4BE8	80	remove rail depot, also affects "remove rail-waypoint" (*)
31	1F	4BEE	80	remove road depot
32	20	4BF4	90	remove ship depot
33	21	4BFA	30	remove tunnel tile
34	22	4C00	10,000	clear water, also affects "build/remove canal/lock" and "build aqueduct" (*)
35	23	4C06	50	remove platform tile
36	24	4C0C	30	remove airport tile
37	25	4C12	50	remove bus station
38	26	4C18	50	remove lorry area, also affects "remove buoy" (*) (**)
39	27	4C1E	55	remove dock
40	28	4C24	1600	remove house, also affects "remove industry" (*)
41	29	4C2A	40	remove road
42	2A	4C30	5600	steam engine running costs
43	2B	4C36	5200	diesel engine running costs
44	2C	4C3C	4800	electricengine running costs
45	2D	4C42	9600	aircraft running costs
46	2E	4C48	1600	road vehicle running costs
47	2F	4C4E	5600	ship running costs
48	30	4C54	1,000,000	funding industries, also affects "stuff with local authority", "build raw industry" and "fund town" (*)
49	31	-	1600	remove industry	OTTD r18283
50	32	-	40	build object	OTTD r18283
51	33	-	40	remove object	OTTD r18283
52	34	-	600	build rail-waypoint	OTTD r18283
53	35	-	80	remove rail-waypoint	OTTD r18283
54	36	-	350	build buoy	OTTD r18283
55	37	-	50	remove buoy	OTTD r18283
56	38	-	1,000,000	stuff with town authority	OTTD r18283
57	39	-	250	build foundation	OTTD r18283
58	3A	-	8,000,000	build raw industry (in case prospecting is disabled)	OTTD r18283
59	3B	-	1,000,000	fund town	OTTD r18283
60	3C	-	5,000	build canal	OTTD r19720
61	3D	-	5,000	remove canal	OTTD r19720
62	3E	-	10,000	build aqueduct	OTTD r19720
63	3F	-	2,000	remove aqueduct	OTTD r19720
64	40	-	7,500	build lock	OTTD r19720
65	41	-	2,000	remove lock	OTTD r19720

(*) if not set separately (**) yes, "remove buoy" is mentioned in this line, not in the line below

Note: The newly added base costs of OTTD only apply if a base cost modifier is set for them. E.g. if NewGRF only set a base cost modifier for terraforming, but none for building foundations, the modifier for terraforming will also apply to building foundations, as that was the base cost used before the new one was added.

Note that some values may be adjusted by certain constant factors before being used by the game, but that is a property of the place where it's used, not the base cost as such.

Also, all constructions costs and all running costs are subject to modification by the game difficulty settings.