First time doing a topic but that okay,
i wanted to share few easy way of gaining GB, since when i was new i really didn't knew how..

SB ways :
- In Oasis, GB sales, at least 1000 or 900 SB to gain 1 GB

Others ways :
- Zebra Heart : This item can be found in the Oasis for 2 GB, but you can gain it if you do between 5001 and 7500 of score in Pin the Prey (more luck after 7500) For now the Zebra heart is 1GB and 200SB, its still a free way!

- Food pack : A long but easy way, get at least 100 carcass (eating things) with one or more use and sell them all in the trading center for 1GB! (or 2 i never tried), you can even put few SB with it!