Summary
Lumberyard is based on CryEngine and offers integration with Amazon's online services, making it easier to include online multiplayer features.
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It offers a lot of promise to game developers at all skill levels, combining game-development tooling with the storage and computation of AWS cloud.
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However, Unreal is a more matured game engine and is the clear winner.
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It is well known, with great tutorials and documentation, making it easy to start as a novice and learn as you go.
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According to
Summary
In the beginning (that is, early 2016), Amazon Lumberyard offered a lot of promise to game developers at all skill levels: By combining a lot of cross-platform game-development tooling with the storage and computation of AWS cloud , it seemed like an unbeatable proposition for game developers who didn’t want to stick with Unity
Lumberyard: What Happened to Amazon's Gaming Dreams?
dice.com
Summary
Unreal being a more matured game engine is the clear winner but lumberyard also has many features to offer and can be good for a new developer.
Mac or Windows with Graphics card and 8GB RAM
Windows with 8GB RAM and Compatible graphics card. Does not support MAC
Little difficult
Unreal vs Lumberyard - VionixStudio
vionixstudio.com
Unreal is a first-person shooter video game developed by Epic MegaGames and Digital Extremes and published by GT Interactive for Microsoft Windows in May 1998. It was powered by Unreal Engine, an original game engine. The game reached sales of 1.5 million units by 2002.
Unreal (1998 video game) - Wikipedia
wikipedia.org