Intel Core i3 6100 - RM 488
ASRock H110M-HDV - RM 245
Corsair 8GB DDR4 2133MHz Value RAM - RM 225
Seagate Barracuda 1TB HDD - RM 206
Corsair VS450 - RM 162
Tecware F3 - RM 119

Total: RM 1445 (ETech price inclusive of GST)

Cannot fit a dedicated GPU (even with Pentium G4400) so just use the iGPU of the i3 (HD 530) for Dota or Starcraft.

No, it's about budget constraint, mATX/mITX can fit dedicated GPU just fine 

If you plan to get a high end GPU in the future, please consider swapping the current selected PSU to a better one so you don't have to upgrade the PSU next time when you do the GPU upgrade.

This is good point... I always go overboard with PSU... like for the rig u recommended me, I got myself an EVGA Supernova G2 650w gold just so i can maintain it at medium load and the fan wont run... so it'll be quiet...

Get the Corsair VS550/FSP Hexa+ 550W if you don't plan to fork out too much money for it, else you can go for a decent one priced > RM 350+.

Bear in mind that some CPU demanding games will require a more powerful CPU to fully unleash the performance of GTX1060, i3 will work fine (don't worry) but it might hold back the performance of the card in some games.