 If you liked
Break Blade Movie 1: Kakusei no Toki
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 ...then you might like
Knight's & Magic
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Similar in that there are mecha in more fantasy setting but the similarities probably end there. Tone and presentation are completely different. The emphasis on Knight's and Magic is the light-hearted telling of the Main Character's goal and dream of completing his own personal, amazing mecha whereas Break Blade is very serious and conflict-driven.