The Flame in the Flood

The Flame in the Flood is a survival game where you and your dog are floating down the "river that has become the world".   You can stop off at some islands on the way as you guide your small raft to refuel, scavenge supplies, craft snares and upgrade your raft.

Presumably there is an end to the trip down the river, but games like these where you are crafting upgrades for your ship and supplies and inventory require a few playthroughs to get a handle on what's important.  In my playthrough, I struggled even piloting the raft and feel like I missed a lot of supplies until eventually sailing to an island full of boars that gored me to death (there he is on the right by the bus -- avenge me!).