Though the game tries to reinvigorate the classic Yugioh! feeling, the campaign quickly turns into solitaire. That the banlist isn't enforced during the whole campaign does not help this either. I could forgive this, since this isn't the video game's but rather the larger card game's structural fault.
However, the game fundamentally does not respect your time. The booster pack rosters (314 cards per roster) are way too large, slimming the chances of getting the cards you want out of it drastically, especially if it is considered a "rare" card. The latter being only the final position of the 8 card booster pack, while non-rare cards can be any of the seven former cards in a booster pack. Since the game does not consider getting more than three of a kind to be an issue, and merrily let's you (individually, mind you, there is no bulk buy) buy booster after booster until you at long last achieved that glorious 942 cards, when it blocks the buy booster option, this is grindy as hell. To be clear, there is only one in-game currency to my knowledge, which you earn after finishing duels, getting somewhere between 500 to 2000 of that currency per duel. Most boosters cost 400, so at best, you can afford 5 boosters per duel played, with 100+ pulls per booster pack to get all of its cards, with a total of 33 booster packs. When each duel, considering load times and animations takes about 5 minutes, each duel granted you 5 booster packs, and you optimally got no duplicates in any pull (which is the crown of unrealistic assumptions, as you will spend countless of pull-sessions grinding for that one card you need), the game expects you to play 942 / 8 * 33 * 5 / 60 ~ 324 hours until you have access to the full card library, realistically more.
What is most frustrating about this, is, that earlier yugioh games already solved this issue. I bought this game in nostalgia of the old world-championship series games, in which you had structure decks (which included more cards per unit), a card market to get the exact card you needed, smaller booster packs which matched the real life booster packs, making your chances better to get the needed cards by chance alone. Implement Gacha-mechanics like guaranteed cards after a certain amount of pulls, a path mechanic towards the cards you need, whatever. But the way the system is currently designed, I cannot recommend the game to anyone.
Buy it during a steam-sale, if you want a throwback down memory lane and are nostalgic for classic yugioh in the campaign, but the game isn't worth it's full-price.
