Here is the full list of all 26 Geometry Runner Online achievements.
NEW_ACHIEVEMENT_DESC_1_1
NEW_ACHIEVEMENT_DESC_1_2
NEW_ACHIEVEMENT_DESC_1_3
NEW_ACHIEVEMENT_DESC_1_4
NEW_ACHIEVEMENT_DESC_1_5
NEW_ACHIEVEMENT_DESC_1_6
NEW_ACHIEVEMENT_DESC_1_7
NEW_ACHIEVEMENT_DESC_1_8
NEW_ACHIEVEMENT_DESC_1_9
NEW_ACHIEVEMENT_DESC_1_10
NEW_ACHIEVEMENT_DESC_1_11
NEW_ACHIEVEMENT_DESC_1_12
NEW_ACHIEVEMENT_DESC_1_14
NEW_ACHIEVEMENT_DESC_1_16
NEW_ACHIEVEMENT_DESC_1_17
NEW_ACHIEVEMENT_DESC_1_18
NEW_ACHIEVEMENT_DESC_1_19
NEW_ACHIEVEMENT_DESC_1_20
NEW_ACHIEVEMENT_DESC_1_21
NEW_ACHIEVEMENT_DESC_1_22
NEW_ACHIEVEMENT_DESC_1_23
NEW_ACHIEVEMENT_DESC_1_24
NEW_ACHIEVEMENT_DESC_1_25
NEW_ACHIEVEMENT_DESC_1_26
NEW_ACHIEVEMENT_DESC_1_27
NEW_ACHIEVEMENT_DESC_1_28