(Graphs included) Prophecy Reports 1.26 Million Tonnes of Inferred Resource Grading 444 g/t Ag Eq. (363 g/t Silver, 0.98% Zinc, 1.02% Lead) for Paca Deposit

Vancouver, British Columbia, September 21, 2015 – Prophecy Development Corp. (“Prophecy” or the “Company”) (TSX:PCY, OTCQX:PRPCF, Frankfurt:1P2) is pleased to announce receipt of an independent mineral resource estimate for the Paca deposit, part of the Company’s Pulacayo silver-zinc-lead project, prepared in accordance with the CIM Definition Standards on Mineral Resources and Mineral Reserves referenced in National Instrument 43-101, Standards of Disclosure for Mineral Projects (“NI 43-101”). The effective date of the mineral resource estimate is September 9, 2015.

The Paca deposit is located in Bolivia approximately 7km north of the Company’s Pulacayo deposit, which is 107km northeast of Sumitomo Corporation’s San Cristobal silver mine, 185km southwest of Coeur Mining, Inc.’s San Bartolome silver mine, and 139km north of Pan American Silver Corp.’s San Vicente silver mine. The mineral resource estimate was prepared by Mercator Geological Services Limited (“Mercator”) under the supervision of Michael Cullen, P.Geo., who is an independent Qualified Person as set out in NI 43-101.

Results of the mineral resource estimate prepared by Mercator for the Paca deposit are presented below in Table 1. A technical report documenting the resource estimate and disclosed in accordance with NI 43-101 will be filed by Prophecy under its company profile on www.SEDAR.com within 45 days of this press release.

Table 1: Paca Inferred Mineral Resource Statement Details

Notes

1. Raw silver assays were capped at 1,050 g/t, raw lead assays were capped at 5% and raw zinc assays were capped at 5%.
2. Silver equivalent Ag Eq. (g/t) = Ag (g/t) + (Pb% * (US$0.94/lb. Pb/14.583 Troy oz./lb./US$16.50 per Troy oz. Ag.)*10,000) + (Zn% * (US$1.00/lb. Zn/14.583 Troy oz./lb./US$16.50 per Troy oz. Ag.)*10,000; 100% metal recoveries are assumed based on lack of comprehensive metallurgical results.
3. Metal prices used in the silver equivalent calculation are US$16.50/Troy oz. Ag, US$0.94/lb Pb and US$1.00/lb. Zn and reflect those used in the June 16, 2015 Pulacayo mineral resource estimate by Mercator.
4. Metal grades were interpolated within wireframed, three dimensional solids using Geovia-Surpac Ver. 6.7 software and inverse distance squared interpolation methods. Block size is 5m (X) by 5m (Z) by 2.5m (Y). Historic mine void space was removed from the model prior to reporting of resources.
5. The block density factor of 2.26 reflects the average value of 799 density measurements.
6. The mineral resource is considered to have reasonable expectation for economic development using underground mining methods based on the deposit history, resource amount and metal grades, current metal pricing and comparison to broadly comparable deposits elsewhere
7. Mineral resources that are not mineral reserves do not have demonstrated economic viability.
8. ^*The resource estimate cut-off value is 300 g/t Ag Eq. and resource estimate values are presented in bold type.
9. ^**Tonnes are rounded to nearest 10,000.

The resource estimate is based on results of 97 diamond drill holes and 1 reverse circulation drill hole totaling 18,160 meters completed between 2002 and 2007. Verification and validation checks on the sampling method, sample shipment documentation and analytical data were carried out by Mercator in support of the current resource estimate and Prophecy independently carried out additional database checks with satisfactory results. Review of available quality control and quality assurance program results that include analyses for duplicate, blank, certified reference material and third party check sample materials was also performed by Mercator with acceptable results. The methods and assumptions used to interpolate metal grade including variography, search ellipse orientation and dimensions, drill hole density, and geological interpretation are considered reasonable for this type of epithermal mineral deposit. Block model results were compared to assay composites and ordinary kriging results and all show acceptable correlation to the underlying data.

The contained metals within the September 9, 2015 resource estimate by Mercator are presented below in Table 2.

Table 2: Contained Metals in September 9, 2015 Paca mineral resource estimate

^*Based on the resource estimate Ag Eq. cut-off value of 300 g/ and 100% recovery; figures are rounded to the nearest 100,000th increment

Only minimal historical mining has occurred at Paca. The geology of the Paca deposit includes a core zone of feeder-style mineralization associated predominantly with brecciated andesite, plus additional zones of shallowly dipping mantos-style mineralization that are hosted by the surrounding volcano-sedimentary sequence. The Paca deposit remains open at depth and along strike at present. The Company believes that there is good potential to expand the existing resource and to locate additional mineralization in the vicinity of the Paca deposit as well as in the vicinity of the nearby Pulacayo Mine (refer to Prophecy’s press release dated September 9, 2015 regarding sampling results from the Paca North, El Abra, Pacamayo and Pero priority targets).

The Paca mineralization starts from surface, with approximately 95% of the resource existing at the cut-off value of 300 g/t Ag Eq. occurring within 100m of surface. Portions of the deposit may also be amenable to open-pit mining and this will be evaluated further in the future. The Company’s research has shown that relatively few silver open pit deposits have been defined at resource cut-off values of 300 g/t Ag Eq. or more. Prophecy is conducting preliminary internal mine design and planning assessments for Paca that incorporate a pilot mining operation, with mined materials to be processed at a proposed mill constructed on site.

The Paca site is currently undergoing permitting for trial mining at a production rate of 200 tonnes per day. No known legal, political, environmental, or other risks that would materially affect potential future development have been identified by Prophecy as of the effective date of the current mineral resource estimate (September 9, 2015). The trial mining permit is expected to be granted by the end of 2015.

In itsJune 18, 2015 press release, Prophecy reported 1.27 million tonnes of indicated resource grading 530 g/t silver, 3.63% zinc, 2.51% lead (688 g/t Ag Eq.) for the Pulacayo underground project*. In July 2015, Prophecy completed a detailed internal underground mine planning schedule for Pulacayo, which can be downloaded at www.prophecydev.com.

The Pulacayo mine site and mill site are fully permitted and a production decision will be made when the construction, offtake, and financing contracts are fully assessed. Pulacayo, Paca and the historic tailings piles could all provide potential feed to a proposed 500 tonne-per-day concentrating (milling) operation.

^*The Pulacayo mineral resource estimate was prepared in accordance with the CIM Definition Standards on Mineral Resources and Mineral Reserves referenced in NI 43-101. The effective date of the estimate is June 16, 2015. Silver equivalent Ag Eq. (g/t) = Ag (g/t) *89.2% + (Pb% *(US$0.94/lb. Pb/14.583 Troy oz./lb./US$16.50 per Troy oz. Ag)*10,000 *91.9%) + (Zn% *(US$1.00/lb. Zn/14.583 Troy oz./lb./US$16.50 per Troy oz. Ag)*10,000 *82.9%). Metal prices used in the silver equivalent calculation are US$16.50/Troy oz. Ag, US$0.94/lb Pb and US$1.00/lb Zn. Metal recoveries 89.2% Ag 91.9% Pb. 82.9% Zn. Mineral resources that are not mineral reserves do not have demonstrated economic viability. The Pulacayo mineral resource estimate was prepared by Mercator under supervision of Michael Cullen, P.Geo., who is an independent Qualified Person under NI 43-101. Refer to the Company’s June 18, 2015 press release which can be found at www.prophecydev.com.

Qualified Persons