To find out what rugby games are on tonight, we can check the fixtures for today on various websites. Here are some of the websites and the information they provide:

• RugbyPass: The website has a list of fixtures for the current day, but it does not specify which games are on tonight.

• SuperSport: The website has a list of upcoming rugby matches, but it does not specify which games are on tonight.

• Sky Sports: The website has a list of rugby union fixtures, but it does not specify which games are on tonight.

• Wheres the Match: The website has a list of live rugby matches being shown on TV in the UK today, tomorrow, and over the weekend. It provides information on the channels and times for each match. However, it does not specify which games are on tonight.

• World Rugby: The website has a list of fixtures and results for mens and womens rugby matches and tournaments worldwide. However, it does not provide information on which games are on tonight.

• BBC Sport: The website has a list of rugby union fixtures, latest results, and live scores for all leagues and competitions. However, it does not specify which games are on tonight.

Based on the search results, we cannot determine which rugby games are on tonight.