LolMiner or LOL Miner is a mining program that lets you mine with Nvidia and AMD graphic cards. It is compatible with BTG, BTCZ, LitecoinZ, Safecoin, Snowgem. It is currently in preview stage but works well with both Nvidia and AMD cards.
For Nvidia mining, we still recommend sticking with the EWBF miner but this is boon for AMD miners as equihash 144_5 algorithm is not compatible with any AMD miner other than LolMiner.
You can download the latest miner from this thread or from here. The developer has uploaded the files on Google Drive and that is not letting users to download file as it thinks there is a virus in it. It is common for them and operating systems to think that miners are viruses since they control your GPU and CPU while mining.
If you are using any of these GPUs, you will have to install custom kernel as well. Here are links to them.
If you have an AMD card under 4GB VRAM, the miner will simply not work. So you require Hawaii (R9 290 / 390), Tonga (R9 285 / 380), Fiji (R9 Fury series), Baffin (RX 460 / 560), Ellesmere (470, 480, 570 and 580) or Vega series GPU to mind on an AMD rig.