Here is a full walkthrough with a levels (1-100) guide.
Introduction
Level 1 – 10
Find Gold: LDURD LUR
Low Moves: DLUR
Level 02
Find Gold: URULD LDRUR
Low Moves: DRUR
Level 03
Find Gold: URDLD RULDR UR
Low Moves: URURD R
Level 04
Find Gold: URDRD LDRDL DRURU R
Low Moves: URURU R
Level 05
Find Gold: URDRD LDRUR UR
Low Moves: URDRU R
Level 06
Find Gold: DRDRU RLDLU RDLDR U
Low Moves: URDLD RU
Level 07
Find Gold: LULUR DLDLD RUL
Low Moves: RULDR UL
Level 08
Find Gold: DLULU LDRDL ULULU LDLUR D
Low Moves: ULULU RD
Level 09
Find Gold: RDRUR DLUR
Low Moves: RDRDL UR
Level 10
Find Gold: LURDL DRDLU LDRU
Low Moves: DLULD RU
Level 11 – 20
Find Gold: RURDL DURUL DR
Low Moves: LURUR DR
Level 12
Find Gold: DRDLDLULURD
Low Moves: DRDRU LD
Level 13
Find Gold: RURDL URD
Low Moves: URDRD RD
Level 14
Find Gold: RDRDR DLDLD LURDL DLURD R
Low Moves: RDRDR DR
Level 15
Find Gold: LDRUL DLRDR DRDLD RD
Low Moves: DRDLD RD
Level 16
Find Gold: ULDRD RURDR DLD
Low Moves: ULDRD RD
Level 17
Find Gold: ULDLD LULRU RDRD
Low Moves: ULDRD RD
Level 18
Find Gold: LDLDR URULD LD
Low Moves: RDLDL DLD
Level 19
Find Gold: LULUL DRDRU RD
Low Moves: LULDR URD
Level 20
Find Gold: LDRDL URDLD LRULD RD
Low Moves: LDLUR URD
Level 21 – 30
Find Gold: RURUR DLDLD RDLD
Low Moves: RDLDR DLD
Level 22
Find Gold: ULDLD RULUR LDRDL UL
Low Moves: ULDLD LUL
Level 23
Find Gold: DLDLD RURUL DULUL
Low Moves: DLDLD LUL
Level 24
Find Gold: ULDRU RDRUD RULUL D
Low Moves: ULDRU RDLD
Level 25
Find Gold: LDLUL DRULU L
Low Moves: RDLDR ULUL
Level 26
Find Gold: ULDLU RDRDL ULDLU RD
Low Moves: DLULD LURD
Level 27
Find Gold: RURDR DLULD LULDR DRDRU RULDR
Low Moves: RURDL DLDR
Level 28
Find Gold: URDRU RURUR UDRDL D
Low Moves: DRULD RURD
Level 29
Find Gold: LULDR DRDLD LDLDR D
Low Moves: ULDRD LDRD
Level 30
Find Gold: LDLUR DLDRU L
Low Moves: LDLDL URUL
Level 31 – 40
Find Gold: DLDLU RDRUL D
Low Moves: DRDRD LULD
Level 32
Find Gold: LDLDR DULUL DLDRD LURDL
Low Moves: LDRDL ULDL
Level 33
Find Gold: DLULU RULUL U
Low Moves: DLDRU LULU
Level 34
Find Gold: LULDL DRURU RULUL URDL
Low Moves: RULUL URDL
Level 35
Find Gold: DRDLD RULUL
Low Moves: RDLUR DLDL
Level 36
Find Gold: DLURU RDLDL ULURU RDL
Low Moves: DLULU LURDL
Level 37
Find Gold: ULURD LDRDL DL
Low Moves: ULDRU RULDL
Level 38
Find Gold: DLURU LULUR DLURU RDL
Low Moves: URDLURURDL
Level 39
Find Gold: DLDRU LURUR DRDRU LURUL URDL
Low Moves: DLDRU LURDL
Level 40
Find Gold: DLULD LUDRU L
Low Moves: DLULD LDRUL
Level 41 – 50
Find Gold: DLULU LDULU RULDL
Low Moves: DLULD LURUL
Level 42
Find Gold: RULUR URDLU LDRUL DLD
Low Moves: RULDR ULDLD
Level 43
Find Gold: LDRUR DLULD LDRUR DRD
Low Moves: LDRUR DLURD
Level 44
Find Gold: LDRDR URULD RDLD
Low Moves: LDRDR DRDLD
Level 45
Find Gold: RDRDL DRDLU LULDL DRD
Low Moves: RDRUR DLDRD
Level 46
Find Gold: ULDLU RDRDL DRUR
Low Moves: ULDLD LDRDR
Level 47
Find Gold: DRDRD RDRDL URLDR UR
Low Moves: DRDLD RDRUR
Level 48
Find Gold: LDRUR URURD LDRUL D
Low Moves: DRURU LDLDL D
Level 49
Find Gold: RURDR DLULD LDLUL
Low Moves: RDLDR DLDLU L
Level 50
Find Gold: DLDLU LULDU RDRDL DLULD
Low Moves: DLDLU LDLDL D
Level 51 – 60
Find Gold: LDLDR DRDRU LULUR UDLDR DRURU R
Low Moves: LDLDR DRURU R
Level 52
Find Gold: DLDLU RURDR DLULU LD
Low Moves: URDLU LDLUL D
Level 53
Find Gold: RDRDR DLULU RUDLD L
Low Moves: LDLUR DRDLDL
Level 54
Find Gold: DLDLU LURDU LURUR DRULD LURD
Low Moves: ULURU LDLUR D
Level 55
Find Gold: LULDL ULURU LUL
Low Moves: LULUL DLULU L
Level 56
Find Gold: ULULD LDLUR ULULD LDLD
Low Moves: ULULD LULDL D
Level 57
Find Gold: LDRDL DRDRD RULDR
Low Moves: LDRDR DLDLD R
Level 58
Find Gold: DRURU RDRUL ULURU LU
Low Moves: DRDLU RULUL U
Level 59
Find Gold: RURUL DURDR DRUR
Low Moves: RURUR DRDRU R
Level 60
Find Gold: URDRU RULDR ULDLU RDRDL ULURU
Low Moves: URDRD LULUR U
Level 61 – 70
Find Gold: RURDL URLUR URULD RU
Low Moves: RULUL URULD RU
Level 62
Find Gold: LULUR URULU RULDL RU
Low Moves: LULDL ULULU RU
Level 63
Find Gold: LULUR ULURU RDLDL ULU
Low Moves: LULUR URDLU LU
Level 64
Find Gold: DRLUL ULURU LURUL U
Low Moves: LULUR ULURU LU
Level 65
Find Gold: LULDR URDRD RDRDL RULUL ULDLU
Low Moves: LULDR URDLD LU
Level 66
Find Gold: RURUR LULUL DLULU
Low Moves: RDRUL ULDLU LU
Level 67
Find Gold: RURUR ULDLU LURDR URU
Low Moves: LULUL URDRU RU
Level 68
Find Gold: LURDR DRURD LDLRU LDRUR DLU
Low Moves: LURDR DRURD LU
Level 69
Find Gold: RURUL URURU LULU
Low Moves: RULUL URURU LU
Level 70
Find Gold: LULUR ULDLD LDRDR ULURU RDLU
Low Moves: LULUR ULDLD LU
Level 71 – 80
Find Gold: LURUL URULU LDLUL URU
Low Moves: LURUR ULULU RU
Level 72
Find Gold: RULDR DRURU RDULD LULDL U
Low Moves: RULDR DLURD LU
Level 73
Find Gold: RURUR URULR DLULU RDR
Low Moves: RURUR ULULU RDR
Level 74
Find Gold: URDRD RDRDL DRDLU LD
Low Moves: URDRD RDRDL DLD
Level 75
Find Gold: URDLD RURDR DRURD LDLUR URD
Low Moves: URDLD RURDR URD
Level 76
Find Gold: LDRDR DLULD LDRDR DLDR
Low Moves: RDLDL DRDRD LDR
Level 77
Find Gold: DRURU RDRUL DLDRL DRDRU LU
Low Moves: DRURU LDRDR ULU
Level 78
Find Gold: LURUR URURD LULUL RDRDL UR
Low Moves: LURUR URURD LUR
Level 79
Find Gold: DRDLU RDLDR DRURD
Low Moves: DRURD LDRDR URD
Level 80
Find Gold: LDRUL URURD RDRUL ULUL
Low Moves: LDLUR URDLU LUL
Level 81 – 90
Find Gold: RDLDR DLULD LDLUL ULUL
Low Moves: RDLDL DLULU LUL
Level 82
Find Gold: ULDRU LURUL DRDRD LDL
Low Moves: RULUL DRDRD LDL
Level 83
Find Gold: DLULD LURDR ULULD LDLUR DRDL
Low Moves: DLULD LDLUR DRDL
Level 84
Find Gold: DLULD RULDL DLULD RULUL UL
Low Moves: DLDLU LDRUL ULUL
Level 85
Find Gold: DLULU RURDL ULDRU RDLDL ULDLU L
Low Moves: DLULU LULUR DRUL
Level 86
Find Gold: ULDLD LDLUL DRDRD LURUR ULDLU LDRDL ULUL
Low Moves: ULDLU LDRDL ULUL
Level 87
Find Gold: DLDLD LURDR ULULU RULUR UL
Low Moves: DLDLD LURUL URUL
Level 88
Find Gold: URULU LDLUL ULDRD LDLDR URU
Low Moves: URULU LDLUL URULU
Level 89
Find Gold: LULUR DLURU RULUL URURD R
Low Moves: LULUR ULURU LURDR
Level 90
Find Gold: LURUR DLDRD RDLDR URDR
Low Moves: LURUR DRDLD RURDR
Level 91 – 100
Find Gold: DRDRU RURDL DLURU RDLU
Low Moves: DRDRU RULUR URDLU
Level 92
Find Gold: RULDR DLURD RULUR ULULU RULDL ULULD RU
Low Moves: RURUR ULDLU LULDR U
Level 93
Find Gold: LULUL URURU LULUR ULURU
Low Moves: LULUR URULU RULUR U
Level 94
Find Gold: RULDR ULDLU LURDR ULDLD RDRU
Low Moves: RULUL DRULD LDRDR U
Level 95
Find Gold: DRULD LULUL DRURU LURDL UR
Low Moves: LULUL DRURU LURDL UR
Level 96
Find Gold: URDRD LDLDR DLULD LULDR DLULD RUR
Low Moves: URULD LULDR DLULD RUR
Level 97
Find Gold: URDRU LDRDR URURU LULDL DURDL DR
Low Moves: URDRU LDRDR URURD LDR
Level 98
Find Gold: DLURU RDRDR URULD LDRDL DLURD R
Low Moves: DLURU RDRDR DLDLU RDR
Level 99
Find Gold: DRDLU RDRUL URURU LRDRD RDRDL UR
Low Moves: DRDLU RDRUR DRULD RDLUR
Level 100
Find Gold: URDRD RDRDL URDLU RDRDR DLURD RURUL URDLD R
Low Moves: URDRD RDLUR DRURU LURDL DR
Thanks to Na for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.