Haven & Hearth is described as 'MMORPG (Massive Multiplayer Online Roleplaying Game) set in a fictional world loosely inspired by Slavic and Germanic myth and legend. The game sets itself apart from other games in the genre in its aim to provide players with an interactive, affectable' and is a exploration game in the games category. There are seven games similar to Haven & Hearth for a variety of platforms, including Windows, Steam, Linux, Mac and Android apps. The best Haven & Hearth alternative is Terraria. It's not free, so if you're looking for a free alternative, you could try Wurm Online or Salem. Other Haven & Hearth like games are Ashen Empires, Krafteers, Zero Orders Tactics and Wild Terra Online.
not open world. its a 2d side scroller also.