[{"data":1,"prerenderedAt":400},["ShallowReactive",2],{"project-15242375":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":33,"aspects":34,"strip":44,"post_text":46,"what":47,"said":103,"maker_in_thread":239,"shape":246,"grid":249,"attempts":362,"same_week":363,"maker_shows":31,"maker_hidden":392,"reader_version":393,"card":394},"15242375","GameOfCoins.de","Virtual Cryptocurrency Trading","title","Show HN: GameOfCoins.de – Virtual Cryptocurrency Trading","https:\u002F\u002Fgameofcoins.de","gameofcoins.de","eralpb",1505335102,2017,83,50,541,2242,25,"notable","games","virtual trading game","web_app",[24,25,26,27],"virtual crypto trading","cryptocurrency simulator","paper trading","crypto leaderboard","mixed",-0.231,{"positive":31,"neutral":32,"mixed":31,"critical":32},2,8,20,{"idea":35,"execution":37,"pricing":39,"privacy":41,"design":42,"docs":43},{"positive":31,"critical":36},0,{"positive":36,"critical":38},3,{"positive":36,"critical":40},1,{"positive":36,"critical":38},{"positive":36,"critical":36},{"positive":36,"critical":40},[38,36,36,38,36,40,40,45,36,36,36,36,36,40,40,40,38,36,38,36,36,36,38,45,40,36,38,38,36,36,36,36,36,38,36,36,36,36,40,40],5,null,{"problem":48,"audience":58,"pricing":46,"motivation":62,"time_to_build":46,"stack":66,"openness":100,"stage":101,"team_size":102},{"value":49,"source":50,"evidence":51},"Lets people try cryptocurrency trading without real money","maker",[52,55],{"id":53,"by":11,"text":54},"15242397","Hello, I created this for fun, although more professional tools are available for virtual trading this one is just focused on cryptocurrencies and for the fun aspect. The…",{"id":56,"by":11,"text":57},"15243155","Maybe you tried to include too many features? :) My friends just wanted to give cryptocurrencies a try, and all these charts and orders are too complicated! This is where they…",{"value":59,"source":50,"evidence":60},"People curious about cryptocurrencies who want to try them",[61],{"id":56,"by":11,"text":57},{"value":63,"source":50,"evidence":64},"Built for fun",[65],{"id":53,"by":11,"text":54},[67,75,84,92,96],{"value":68,"source":69,"evidence":70},"Python 2.7","commenter",[71],{"id":72,"by":73,"text":74},"15242822","drakmail","Sqlite in production? Seriously? And Python 2.7... Move to 3.x and PostgreSQL at least ;-) PS. Nice idea",{"value":76,"source":50,"evidence":77},"SQLite, later switched to PostgreSQL",[78,81],{"id":79,"by":11,"text":80},"15242848","I didn't know Python3 offers better performance to be honest, but Sqlite is a real ordeal for this t2.micro now ;) (Switched to PostgreSQL in a hot-change fashion!)",{"id":82,"by":11,"text":83},"15243169","Thank you, I may implement couple of features this weekend, I agree it'd be much better to see a bit of history! Changed my database server, should give no errors as of now ;)",{"value":85,"source":86,"evidence":87},"Flask or Django (inferred from debug toolbar discussion)","inferred",[88],{"id":89,"by":90,"text":91},"15250347","askz","With Django debug toolbar or even flask debug toolbar, you can have this can of information.",{"value":93,"source":50,"evidence":94},"CryptoCompare API for prices",[95],{"id":53,"by":11,"text":54},{"value":97,"source":50,"evidence":98},"AWS t2.micro instance",[99],{"id":79,"by":11,"text":80},"unknown","prototype","solo",{"praise":104,"objections":129,"requests":169,"questions":203,"alternatives":218},[105,117],{"value":106,"source":69,"evidence":107},"Fun idea and nice execution",[108,109,113],{"id":72,"by":73,"text":74},{"id":110,"by":111,"text":112},"15243626","luismmolina","Where is IOTA? I want to \"buy\" it. Keep working on it, its really nice!",{"id":114,"by":115,"text":116},"15261273","ddgflorida","Fun! It would be nice to see what price we bought the currency at in Trade History, plus what our current profit is per currency.",{"value":118,"source":69,"evidence":119},"Would like trade history with buy prices and profit",[120,124,125],{"id":121,"by":122,"text":123},"15242945","egeozcan","Great idea, now I can see how I would suck about making the right coin choices! How about also showing the buying price to make it more apparent for me? :) Also, something to…",{"id":114,"by":115,"text":116},{"id":126,"by":127,"text":128},"15243780","hayksaakian","would be nice to track my trade history so i can see when i'm up or down on an particular coin",[130,141,152,162],{"value":131,"source":69,"evidence":132},"Buying does not affect market prices, so profits are unrealistic",[133,137],{"id":134,"by":135,"text":136},"15244053","Geee","You can make much more profit trading here than is actually possible, because buying virtually won't affect the market.",{"id":138,"by":139,"text":140},"15245880","Tepix","Yes it should take into account the trade volume and if you buy a significant amount there should be a penalty fee to emulate this somewhat.",{"value":142,"source":69,"evidence":143},"Server errors and database locking",[144,145,149],{"id":121,"by":122,"text":123},{"id":146,"by":147,"text":148},"15245361","Keeeeeeeks","Neat project; I'm starting to think that most of these sites, and services that gamify crypto-speculating are training models around user behavior\u002Fmimicking trades. Also, it…",{"id":150,"by":139,"text":151},"15245872","Getting 500 server error when trying to buy a cryptocoin.",{"value":153,"source":69,"evidence":154},"Requires Twitter login and landing page lacks explanation",[155,159],{"id":156,"by":157,"text":158},"15242884","bastijn","Not sure if this is a nice idea, a nice execution, or nothing at all. There was a HN post not too long ago on \"please tell us what you do first thing\". Guess you should (re)read…",{"id":160,"by":157,"text":161},"15243692","You didn't offend, no worries. I understood what you meant. I just included it as a minor, not well understood it seems from the downvotes, joke to take the edge of the comment.…",{"value":163,"source":69,"evidence":164},"Possible security issues such as a hacked portfolio and race condition",[165],{"id":166,"by":167,"text":168},"15243945","Retr0spectrum","Someone seems to have hacked it already: https:\u002F\u002Fgameofcoins.de\u002Fportfolio\u002Fbury Race condition?",[170,175,182,189,196],{"value":171,"source":69,"evidence":172},"Show buy price and profit per coin",[173,174],{"id":121,"by":122,"text":123},{"id":114,"by":115,"text":116},{"value":176,"source":69,"evidence":177},"Trade history tracking",[178,179],{"id":126,"by":127,"text":128},{"id":180,"by":11,"text":181},"15255580","It should now be implemented ;) .. half of it lol",{"value":183,"source":69,"evidence":184},"Add more coins such as IOTA",[185,186],{"id":110,"by":111,"text":112},{"id":187,"by":11,"text":188},"15246920","It is interesting that IOTA is missing.. because I already query 1300 coins. Let me check what is wrong :)",{"value":190,"source":69,"evidence":191},"Allow short selling",[192],{"id":193,"by":194,"text":195},"15243109","ringaroundthetx","Can't go short? nobody can make returns on a down day except possibly selling back to USD?",{"value":197,"source":69,"evidence":198},"Exact amount input instead of slider",[199],{"id":200,"by":201,"text":202},"15248558","Sujan","Why the .de domain? Feature request: Let me input exact amounts instead of only via the slider.",[204,208],{"value":205,"source":69,"evidence":206},"Why the .de domain",[207],{"id":200,"by":201,"text":202},{"value":209,"source":69,"evidence":210},"Does the site reveal its stack",[211,215],{"id":212,"by":213,"text":214},"15242962","fazkan","how did you come to know which stack, the app is using..",{"id":216,"by":213,"text":217},"15247973","this makes sense...but still he knows which database you are using. I dont think debug errors give that information. Or does it???",[219,225,232],{"value":220,"source":50,"evidence":221},"eToro virtual mode",[222],{"id":223,"by":11,"text":224},"15243123","I didn't want to convert this to a full-fledged trading platform with Stop Losses and orders etc. it requires too much effort. but if you want to test that I can recommend you…",{"value":226,"source":69,"evidence":227},"CryptoGround",[228],{"id":229,"by":230,"text":231},"15245770","techaddict009","Wow we are competitors: https:\u002F\u002Fwww.cryptoground.com\u002F",{"value":233,"source":69,"evidence":234},"Wappalyzer for stack detection",[235],{"id":236,"by":237,"text":238},"15245496","binora","wappalyzer is also good[1]. 1. https:\u002F\u002Fchrome.google.com\u002Fwebstore\u002Fdetail\u002Fwappalyzer\u002Fgppongmhjkpfnbhagpmjfkannfbllamg?hl=en",{"comments":240,"answered":241,"key":242},11,6,[243,244,245],{"id":53,"text":54},{"id":82,"text":83},{"id":56,"text":57},{"commenters":247,"max_depth":248,"maker_replies":240,"first_comment_mins":31,"lifespan_hours":15},29,7,[250,254,258,262,263,265,267,269,271,273,277,279,281,284,286,288,291,294,296,297,299,301,302,304,305,307,310,312,313,315,316,320,323,325,327,331,334,336,338,340,344,347,348,350,352,353,355,356,358,360],[251,36,38,252,253,36],"15243498","project\u002Fneutral\u002Fidea","noddy1",[255,36,36,256,257,36],"15244996","commenter\u002Fneutral\u002Fnone","jerguismi",[259,36,36,260,261,36],"15256096","other\u002Fneutral\u002Fnone","quickthrower2",[53,40,36,252,11,40],[121,40,38,264,122,36],"project\u002Fmixed\u002Fexecution",[82,40,36,266,11,40],"maker\u002Fneutral\u002Fexecution",[150,40,40,268,139,36],"project\u002Fcritical\u002Fexecution",[134,31,40,270,135,36],"project\u002Fcritical\u002Fpricing",[138,31,38,272,139,36],"project\u002Fneutral\u002Fpricing",[274,38,45,275,276,36],"15243035","project\u002Fpositive\u002Fidea","brut",[56,38,36,278,11,40],"maker\u002Fneutral\u002Fidea",[280,38,36,256,276,36],"15243349",[282,38,36,256,283,36],"15244952","justinjlynn",[285,38,36,256,276,36],"15245017",[229,287,36,256,230,36],4,[289,287,36,290,11,40],"15246904","commenter\u002Fneutral\u002Fdesign",[292,45,40,268,293,36],"15254620","kentbrew",[146,241,40,295,147,36],"project\u002Fcritical\u002Fprivacy",[166,248,40,268,167,36],[114,32,38,298,115,36],"project\u002Fneutral\u002Fdesign",[126,300,38,298,127,36],9,[180,300,36,266,11,40],[193,303,38,252,194,36],10,[223,303,36,278,11,40],[306,303,36,256,194,36],"15243172",[308,303,36,260,309,36],"15243263","matt_wulfeck",[311,303,36,260,194,36],"15243831",[200,240,38,298,201,36],[110,314,45,275,111,36],12,[187,314,36,266,11,40],[317,318,40,295,319,36],"15258848",13,"rrobukef",[321,318,36,322,11,40],"15258916","maker\u002Fneutral\u002Fprivacy",[72,324,38,264,73,36],14,[79,324,36,326,11,40],"maker\u002Fneutral\u002Fperformance",[328,324,38,329,330,36],"15242892","maker\u002Fneutral\u002Fnone","stefantheard",[332,324,36,260,333,36],"15242960","olegkikin",[335,324,36,260,122,36],"15242970",[337,324,36,260,333,36],"15243020",[339,324,36,256,122,36],"15243048",[341,324,36,342,343,36],"15243604","other\u002Fneutral\u002Fperformance","silly_giraffe",[345,324,36,342,346,36],"15244522","StavrosK",[212,324,38,329,213,36],[349,324,36,329,11,40],"15243159",[216,324,36,351,213,36],"commenter\u002Fneutral\u002Fprivacy",[89,324,36,260,90,36],[354,324,36,260,73,36],"15251252",[236,324,36,260,237,36],[156,357,40,295,157,36],15,[359,357,36,322,11,40],"15243148",[160,357,40,361,157,36],"project\u002Fcritical\u002Fdocs",[],[364,369,374,379,384,388],{"id":365,"name":366,"points":367,"category":368},"15201152","Coder's Coloring Book",523,"learning_science",{"id":370,"name":371,"points":372,"category":373},"15207151","unarbitrate",431,"web_saas",{"id":375,"name":376,"points":377,"category":378},"15216650","Gridless Kits",373,"hardware",{"id":380,"name":381,"points":382,"category":383},"15207117","Hyperapp",242,"languages",{"id":385,"name":386,"points":387,"category":373},"15200100","Borderline.biz",187,{"id":389,"name":390,"points":391,"category":368},"15206982","Jupyter4kids",147,false,"v2",{"id":395,"name":5,"line":6,"ai":392,"cat":20,"year":13,"points":14,"comments":15,"rec":28,"s":396,"top":18,"kw":397,"maker":11,"domain":10,"tier":19,"attempts":36,"strip":398,"url":9,"mix":399,"praise":106,"objection":131,"sub":21},15242375,-0.23,[24,25,26,27],"3003011500000111303000351033000003000011",[31,32,31,32],1794036558901]