In the absence of a will, your estate will be distributed in accordance to Singapore’s Intestate Succession Act. This does not apply if you are of Islamic faith. According to Section 7 of the Intestate Succession Act, the priority of distribution is as follows: (1) Spouse, children (2) Parents (3) Siblings (4) Grandparents (5) Aunts and Uncles.
Source: RockWills