New giveaway each week. Two groups!

I take it as it's fine if it's there only as a giveaway group?

As this is the Steam Group Recruitment sub-forum, meant to provide a place to advertise your group and its associated giveaways, advertising your Steam group is permitted here.

As for the rule, ...

Guidelines

• When posting links or content, that content should not force users, encourage users through reward, or primarily exist as a traffic source for users to perform an action for promotional, commercial, or monetary benefit. Such actions include but are not limited to clicking a referral link, liking a Facebook page, following a Twitter account, joining a Steam group, completing a survey, or making a donation. (Please note, in giveaway descriptions we do allow users and developers to link to their related Steam Greenlight, group, and store pages, as well as their social media channels. Users are also able to reference their group giveaways when posting in the Group Recruitment category of our forum.)