GRB 201015A is a peculiarly low luminosity, spectrally soft gamma-ray burst (GRB), with T90 = 9.8 ± 3.5 s (time interval of detection of 90 % of photons from the GRB), and an associated supernova (likely to be type Ic or Ic-BL). GRB 201015A has an isotropic energy Eγ,iso=1.75−0.53+0.60×1050 erg, and photon index Γ=3.00−0.42+0.50 (15–150 keV). It follows the Amati relation, a correlation between Eγ,iso and spectral peak energy Ep followed by long GRBs. It appears exceptionally soft based on Γ, the hardness ratio of HR = 0.47 ± 0.24, and low-Ep, so we have compared it to other GRBs sharing these properties. These events can be explained by shock breakout, poorly collimated jets, and off-axis viewing. Follow-up observations of the afterglow taken in the X-ray, optical, and radio, reveal a surprisingly late flattening in the X-ray from t = (2.61 ± 1.27) × 104 s to t=1.67−0.65+1.14×106 s. We fit the data to closure relations describing the synchrotron emission, finding the electron spectral index to be p=2.42−0.30+0.44, and evidence of late-time energy injection with coefficient q=0.24−0.18+0.24. The jet half opening angle lower limit (θj ≥ 16○) is inferred from the non-detection of a jet break. The launch of SVOM and Einstein Probe in 2023, should enable detection of more low luminosity events like this, providing a fuller picture of the variety of GRBs