Use the Source, Luke.
While there are only 81 levels (+1 special), having a rummage around in the installation directory (Win8.1) C:\program files\WindowsApps\LucasArts.TinyDeathStar_<version#>\Assets
we can see that game has:
- Costs associated with 200 levels (see below data dump).
- Images for 208 floors (I suspect some of these are Tiny Tower left-overs)
- lots of other miscellaneous stuff (characters that unlock cut-scenes etc).
{"cost":100,"number":2,"uid":"fc002"},
{"cost":200,"number":3,"uid":"fc003"},
{"cost":500,"number":4,"uid":"fc004"},
{"cost":650,"number":5,"uid":"fc005"},
{"cost":1000,"number":6,"uid":"fc006"},
{"cost":1650,"number":7,"uid":"fc007"},
{"cost":3150,"number":8,"uid":"fc008"},
{"cost":4400,"number":9,"uid":"fc009"},
{"cost":8600,"number":10,"uid":"fc010"},
{"cost":12150,"number":11,"uid":"fc011"},
{"cost":15000,"number":12,"uid":"fc012"},
{"cost":18150,"number":13,"uid":"fc013"},
{"cost":21600,"number":14,"uid":"fc014"},
{"cost":25350,"number":15,"uid":"fc015"},
{"cost":29400,"number":16,"uid":"fc016"},
{"cost":33750,"number":17,"uid":"fc017"},
{"cost":38400,"number":18,"uid":"fc018"},
{"cost":43350,"number":19,"uid":"fc019"},
{"cost":48600,"number":20,"uid":"fc020"},
{"cost":54150,"number":21,"uid":"fc021"},
{"cost":60000,"number":22,"uid":"fc022"},
{"cost":66150,"number":23,"uid":"fc023"},
{"cost":72600,"number":24,"uid":"fc024"},
{"cost":79350,"number":25,"uid":"fc025"},
{"cost":86400,"number":26,"uid":"fc026"},
{"cost":93750,"number":27,"uid":"fc027"},
{"cost":101400,"number":28,"uid":"fc028"},
{"cost":109350,"number":29,"uid":"fc029"},
{"cost":117600,"number":30,"uid":"fc030"},
{"cost":126150,"number":31,"uid":"fc031"},
{"cost":135000,"number":32,"uid":"fc032"},
{"cost":144150,"number":33,"uid":"fc033"},
{"cost":153600,"number":34,"uid":"fc034"},
{"cost":163350,"number":35,"uid":"fc035"},
{"cost":173400,"number":36,"uid":"fc036"},
{"cost":183750,"number":37,"uid":"fc037"},
{"cost":194400,"number":38,"uid":"fc038"},
{"cost":205350,"number":39,"uid":"fc039"},
{"cost":216600,"number":40,"uid":"fc040"},
{"cost":228150,"number":41,"uid":"fc041"},
{"cost":240000,"number":42,"uid":"fc042"},
{"cost":252150,"number":43,"uid":"fc043"},
{"cost":264600,"number":44,"uid":"fc044"},
{"cost":277350,"number":45,"uid":"fc045"},
{"cost":290400,"number":46,"uid":"fc046"},
{"cost":303750,"number":47,"uid":"fc047"},
{"cost":317400,"number":48,"uid":"fc048"},
{"cost":331350,"number":49,"uid":"fc049"},
{"cost":345600,"number":50,"uid":"fc050"},
{"cost":360150,"number":51,"uid":"fc051"},
{"cost":375000,"number":52,"uid":"fc052"},
{"cost":390150,"number":53,"uid":"fc053"},
{"cost":405600,"number":54,"uid":"fc054"},
{"cost":421350,"number":55,"uid":"fc055"},
{"cost":437400,"number":56,"uid":"fc056"},
{"cost":453750,"number":57,"uid":"fc057"},
{"cost":470400,"number":58,"uid":"fc058"},
{"cost":487350,"number":59,"uid":"fc059"},
{"cost":504600,"number":60,"uid":"fc060"},
{"cost":522150,"number":61,"uid":"fc061"},
{"cost":540000,"number":62,"uid":"fc062"},
{"cost":558150,"number":63,"uid":"fc063"},
{"cost":576600,"number":64,"uid":"fc064"},
{"cost":595350,"number":65,"uid":"fc065"},
{"cost":614400,"number":66,"uid":"fc066"},
{"cost":633750,"number":67,"uid":"fc067"},
{"cost":653400,"number":68,"uid":"fc068"},
{"cost":673350,"number":69,"uid":"fc069"},
{"cost":693600,"number":70,"uid":"fc070"},
{"cost":714150,"number":71,"uid":"fc071"},
{"cost":735000,"number":72,"uid":"fc072"},
{"cost":756150,"number":73,"uid":"fc073"},
{"cost":777600,"number":74,"uid":"fc074"},
{"cost":799350,"number":75,"uid":"fc075"},
{"cost":821400,"number":76,"uid":"fc076"},
{"cost":843750,"number":77,"uid":"fc077"},
{"cost":866400,"number":78,"uid":"fc078"},
{"cost":889350,"number":79,"uid":"fc079"},
{"cost":912600,"number":80,"uid":"fc080"},
{"cost":936150,"number":81,"uid":"fc081"},
{"cost":960000,"number":82,"uid":"fc082"},
{"cost":984150,"number":83,"uid":"fc083"},
{"cost":1008600,"number":84,"uid":"fc084"},
{"cost":1033350,"number":85,"uid":"fc085"},
{"cost":1058400,"number":86,"uid":"fc086"},
{"cost":1083750,"number":87,"uid":"fc087"},
{"cost":1109400,"number":88,"uid":"fc088"},
{"cost":1135350,"number":89,"uid":"fc089"},
{"cost":1161600,"number":90,"uid":"fc090"},
{"cost":1188150,"number":91,"uid":"fc091"},
{"cost":1215000,"number":92,"uid":"fc092"},
{"cost":1242150,"number":93,"uid":"fc093"},
{"cost":1269600,"number":94,"uid":"fc094"},
{"cost":1297350,"number":95,"uid":"fc095"},
{"cost":1325400,"number":96,"uid":"fc096"},
{"cost":1353750,"number":97,"uid":"fc097"},
{"cost":1382400,"number":98,"uid":"fc098"},
{"cost":1411350,"number":99,"uid":"fc099"},
{"cost":1440600,"number":100,"uid":"fc100"},
{"cost":1470150,"number":101,"uid":"fc101"},
{"cost":1500000,"number":102,"uid":"fc102"},
{"cost":1530150,"number":103,"uid":"fc103"},
{"cost":1560600,"number":104,"uid":"fc104"},
{"cost":1591350,"number":105,"uid":"fc105"},
{"cost":1622400,"number":106,"uid":"fc106"},
{"cost":1653750,"number":107,"uid":"fc107"},
{"cost":1685400,"number":108,"uid":"fc108"},
{"cost":1717350,"number":109,"uid":"fc109"},
{"cost":1749600,"number":110,"uid":"fc110"},
{"cost":1782150,"number":111,"uid":"fc111"},
{"cost":1815000,"number":112,"uid":"fc112"},
{"cost":1848150,"number":113,"uid":"fc113"},
{"cost":1881600,"number":114,"uid":"fc114"},
{"cost":1915350,"number":115,"uid":"fc115"},
{"cost":1949400,"number":116,"uid":"fc116"},
{"cost":1983750,"number":117,"uid":"fc117"},
{"cost":2018400,"number":118,"uid":"fc118"},
{"cost":2053350,"number":119,"uid":"fc119"},
{"cost":2088600,"number":120,"uid":"fc120"},
{"cost":2124150,"number":121,"uid":"fc121"},
{"cost":2160000,"number":122,"uid":"fc122"},
{"cost":2196150,"number":123,"uid":"fc123"},
{"cost":2232600,"number":124,"uid":"fc124"},
{"cost":2269350,"number":125,"uid":"fc125"},
{"cost":2306400,"number":126,"uid":"fc126"},
{"cost":2343750,"number":127,"uid":"fc127"},
{"cost":2381400,"number":128,"uid":"fc128"},
{"cost":2419350,"number":129,"uid":"fc129"},
{"cost":2457600,"number":130,"uid":"fc130"},
{"cost":2496150,"number":131,"uid":"fc131"},
{"cost":2535000,"number":132,"uid":"fc132"},
{"cost":2574150,"number":133,"uid":"fc133"},
{"cost":2613600,"number":134,"uid":"fc134"},
{"cost":2653350,"number":135,"uid":"fc135"},
{"cost":2693400,"number":136,"uid":"fc136"},
{"cost":2733750,"number":137,"uid":"fc137"},
{"cost":2774400,"number":138,"uid":"fc138"},
{"cost":2815350,"number":139,"uid":"fc139"},
{"cost":2856600,"number":140,"uid":"fc140"},
{"cost":2898150,"number":141,"uid":"fc141"},
{"cost":2940000,"number":142,"uid":"fc142"},
{"cost":2982150,"number":143,"uid":"fc143"},
{"cost":3024600,"number":144,"uid":"fc144"},
{"cost":3067350,"number":145,"uid":"fc145"},
{"cost":3110400,"number":146,"uid":"fc146"},
{"cost":3153750,"number":147,"uid":"fc147"},
{"cost":3197400,"number":148,"uid":"fc148"},
{"cost":3241350,"number":149,"uid":"fc149"},
{"cost":3285600,"number":150,"uid":"fc150"},
{"cost":3330150,"number":151,"uid":"fc151"},
{"cost":3375000,"number":152,"uid":"fc152"},
{"cost":3420150,"number":153,"uid":"fc153"},
{"cost":3465600,"number":154,"uid":"fc154"},
{"cost":3511350,"number":155,"uid":"fc155"},
{"cost":3557400,"number":156,"uid":"fc156"},
{"cost":3603750,"number":157,"uid":"fc157"},
{"cost":3650400,"number":158,"uid":"fc158"},
{"cost":3697350,"number":159,"uid":"fc159"},
{"cost":3744600,"number":160,"uid":"fc160"},
{"cost":3792150,"number":161,"uid":"fc161"},
{"cost":3840000,"number":162,"uid":"fc162"},
{"cost":3888150,"number":163,"uid":"fc163"},
{"cost":3936600,"number":164,"uid":"fc164"},
{"cost":3985350,"number":165,"uid":"fc165"},
{"cost":4034400,"number":166,"uid":"fc166"},
{"cost":4083750,"number":167,"uid":"fc167"},
{"cost":4133400,"number":168,"uid":"fc168"},
{"cost":4183350,"number":169,"uid":"fc169"},
{"cost":4233600,"number":170,"uid":"fc170"},
{"cost":4284150,"number":171,"uid":"fc171"},
{"cost":4335000,"number":172,"uid":"fc172"},
{"cost":4386150,"number":173,"uid":"fc173"},
{"cost":4437600,"number":174,"uid":"fc174"},
{"cost":4489350,"number":175,"uid":"fc175"},
{"cost":4541400,"number":176,"uid":"fc176"},
{"cost":4593750,"number":177,"uid":"fc177"},
{"cost":4646400,"number":178,"uid":"fc178"},
{"cost":4699350,"number":179,"uid":"fc179"},
{"cost":4752600,"number":180,"uid":"fc180"},
{"cost":4806150,"number":181,"uid":"fc181"},
{"cost":4860000,"number":182,"uid":"fc182"},
{"cost":4914150,"number":183,"uid":"fc183"},
{"cost":4968600,"number":184,"uid":"fc184"},
{"cost":5023350,"number":185,"uid":"fc185"},
{"cost":5078400,"number":186,"uid":"fc186"},
{"cost":5133750,"number":187,"uid":"fc187"},
{"cost":5189400,"number":188,"uid":"fc188"},
{"cost":5245350,"number":189,"uid":"fc189"},
{"cost":5301600,"number":190,"uid":"fc190"},
{"cost":5358150,"number":191,"uid":"fc191"},
{"cost":5415000,"number":192,"uid":"fc192"},
{"cost":5472150,"number":193,"uid":"fc193"},
{"cost":5529600,"number":194,"uid":"fc194"},
{"cost":5587350,"number":195,"uid":"fc195"},
{"cost":5645400,"number":196,"uid":"fc196"},
{"cost":5703750,"number":197,"uid":"fc197"},
{"cost":5762400,"number":198,"uid":"fc198"},
{"cost":5821350,"number":199,"uid":"fc199"},
{"cost":5880600,"number":200,"uid":"fc200"}],