Singapore being a tourist destination is full of hotel facilities and all types of hotels are available there.
I have found out some budget hotels having the 2 star and below rating which can be seen in greater details by visiting the hotel booking sites for finding the current room rate and other facilities. The rates are dynamic and change from season to season.
Some of these are in the main Singapore area near to visiting places and are spread in an area of 2-3 km within the city centre and are as follows -
(1) The Atlas Station, Lavender, Singapore.
(2) Hipstercity, Boat Quay, Singapore.
(3) Backpackers' Inn, Chinatown, Singapore.
(4) Atlantis Pods @ Bugis, Tan Quee Lan, Singapore.
(5) Rucksack Inn @ Lavender Street, Lavender, Singapore.
(6) Fisher BnB, Lavender, Singapore.
(7) The Bohemian, Chinatown, Singapore.
(8) Cayden Riverfront Residences, Clarke Quay, Singapore.
Knowledge is power.