Of course it's virus free, checksums for idle_master.zip:

md5: C55AA09271A13C48A4B3CA0723CB8845

SHA1: DDC646B383B69C7D83313CC7E424906C01A8B792

SHA256: A43A1B9882FBA7A5E987F90DBEEB5BCBD0DA0AD5A9D218B4B80D39CB1B3777F8

virustotal result:
https://www.virustotal.com/en/file/a43a1b9882fba7a5e987f90dbeeb5bcbd0da0ad5a9d218b4b80d39cb1b3777f8/analysis/

Just make sure you get from the link on the group overview page.

Always good to check everything you download and you can check against 50ish anti-virus programs at virustotal, just be warned that with this many AV you'll often get a couple of false-positives.

http://www.steamidlemaster.com/ or
https://github.com/jshackles/idle_master/

https://www.virustotal.com/

See this thread:
http://psteamcommunity.yuanyoumao.com/groups/idlemastery/discussions/0/1318836262655257678/

It's working.

Idle master reads your badge page, linked here, it looks for 'card drops remaining'
http://psteamcommunity.yuanyoumao.com/my/badges

Steam gives the cards(not idle master), Steam only gives half a badge set number of cards.
http://psteamcommunity.yuanyoumao.com/tradingcards/faq

You need to buy the rest or trade for them:
http://psteamcommunity.yuanyoumao.com/market/

Free-to-play games do not drop cards unless you spend lots of $€£ on in-game purchases or DLCs

引用自 ᴷʳᵒˢᶦᶠʸ TRADING：

but only got 1 card for 30mins. is this normal?

Yes, normal, some annoying games even take over an hour per card

See settings.
Pointless though, if you idle 5 games instead of one then it will just take 5x as long to drop the cards.

If you are idling all games at once then normal, sometimes steam bugs out and doesn't drop the cards whilst game is playing.

hit pause, it might drop cards quicker. you can also go next through all the games and sometimes get a bunch of drops after that change a setting or restart idlemaster to get it to reread badge page.

Read other discussions

See:
http://psteamcommunity.yuanyoumao.com/groups/idlemastery/discussions/0/133257636766989675/

引用自 The_Cooler_Gengar：

I tried this and it doesnt work

Just create a shortcut to 'steam-idle.exe' Then right click the shortcut, and addin the game appid
like:
Target