🚀Upgrade and Boost

You can use CORE or its equivalent amount in Oil or VeOil to upgrade your oil field. Once upgraded, you can activate the boost feature to enhance your OIL output rate and earn more from the increased OIL production. The oil output bonus is directly proportional to the oil field's level. The increased output can be influenced by random events, and the bonus for boosted oil fields will adjust once the random event countdown concludes.

To upgrade the oil field, you'll need to consume CORE. The amount of oil needed to trigger the boost is based on the oil field's current output (measured in days). For instance, the boost cost for a level 2 oil field is equivalent to 3 days of its output.

Level	Boost Ratio	Upgrading Cost (EU)	Upgrading Cost (NA)	Upgrading Cost (ME)	Boost Cost
2	50%	4	9	20	3
3	100%	6	12	26	5
4	150%	7	15	33	7
5	200%	9	18	40	10
6	300%	10	21	46	15
7	400%	12	24	53	20
8	500%	14	28	60	25
9	600%	15	31	66	30
10	700%	17	34	73	35
11	800%	18	37	80	40
12	900%	20	40	86	45
13	1000%	23	46	100	50
14	1100%	24	49	106	55
15	1200%	26	52	113	60
16	1400%	28	56	120	70
17	1500%	31	62	133	75
18	1600%	35	70	150	80
19	1700%	40	80	175	85
20	1900%	50	100	215	95