If you like computer games that involve battles, Humble Bundle are offering a free game for about the next 35 hours that might interest you.
Provisos:
It will require an email address to receive the link to the STEAM key.
If you don’t use STEAM you will need to install it if you want to use this game from this offer.
Another Free Game offer. This time it is from GOG and again as with the others there are some small hoops to go through. You will need to supply an email address and sign up for a GOG membership (not onerous). Use a disposable email address if not comfortable with getting emails from GOG about offers.
YMMV Not sure how it will work on your machines but as it is free worth a try (also able to be run on some versions of Linux)
Not sure when this offer will expire so if you want it get in quick, and I will delete the link on offer expiry (LINK DELETED AS EXPIRED)
While not a free offer, for about $7 Australian you can get 6 games (AU$20 will get you 7) from Humble Bundle. The offer has about 3 days to go. To see what is on offer visit this link:
If you pay at least US$9.30 (at this time) you get a year’s subscription to Vipre Advanced Security, Track-Off Standard, a six month subscription to Prey Anti-Theft Pro & the previous two offers in the $1 category.
If you pay US$15 or more you get all the above items plus Dashlane Premium Password Manager for 1 year, “ProtonMail Plus” credit $25.00, Spider One Cloud Backup for 1 year with a 1 Terabyte limit, PIA VPN for 1 year and Ad Guard Premium for 1 year. Some of these offers are for new users only so if interested please check if you already use any of these software offers.
If you are into Arduino or similar eg Rasberry Pi they also are offering a eBook offer that has a similar sort of payment tiers.
If you like free games until the 27th Dec 2018, Epic Games is offering Subnautica for free. You have to sign on to or register if not a member of Epic Games and then you can acquire the game for free.