Sigma Plus
Want to see how good of a mathematician you are?
Sigma Plus launched on June 12, 2015 with 1 votes. The site was not reachable when checked in September 2026.
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A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
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Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 20d ago · bigwords.page
Steal My Bitcoin▲615A PHP security challenge. Find the hidden bitcoin key. First person to get the wallet wins.
Life & fun · 2d ago · stealmybitcoin.com
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 13d ago · guitoro.com
Source: Product Hunt launch ↗
Launched alongside, June 2015
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Startup Launch List▲1,251Articles you need to read before launching a startup.
Growth · 2015 · startuplaunchlist.com
Get any site's company logo with just a URL
Dev tools · 2015 · clearbit.com
