As usual, you need to be logged into GOG and then scroll down on the home page to find the giveaway banner. You can claim the game until Monday, April 3rd at 2 PM UTC.
GOG sorted a whole bunch of games into popular and interesting categories to help you find something including:
- Indies – the best selection of independent titles.
- RPG's – enjoy the rich storytelling and embark on a great adventure.
- Classics – evoke nostalgia with a large collection of Good Old Games and classics.
- Highest Discounts - speaks for itself.
- Best Sellers - popular stuff.
- Dungeons and Dragons - a bunch of recent classic additions.
The whole Spring Sale on GOG lasts until Monday, April 3rd at 11PM UTC.
Additionally, GOG have now added more information about recent discounts to game pages. Each game will now list the lowest price it has been in the last 30 days under the current price. An interesting idea, although not a particularly long time to look back for discounts, it at least gives you a small look into how much the game might be discounted in future or at all.