Oh, there are many scenarios, which could happen in theory in that case. 1. Constant block reorganizations, to grab the last "new" satoshi, which didn't have any previous owner. 2. Changing the model of the coin, to synchronize from the point, where all coins are already pre-assigned, and only change hands. 3. Using the chain as a notarization platform, to commit to some data, even without moving any coins. 4. Moving the chain forward, to unlock some timelocked transactions or coins. 5. Working on some puzzles, if it would be more profitable to break a puzzle, than to mine a new block. 6. Introducing any coin-in-a-coin scheme, where you peg another coin to the chain, and exchange between the mainchain, and the sidechain. And probably much, much more. You can see, what is going on with testnet3, where almost all coins were mined. You can see, how testnet miners can get a lot of coins, for confirming a lot of spam on-chain. And you can also see, how some sidechains create no coins out of thin air, and which strategies they picked, to make it stable, when they have to focus only on transaction fees. Then you can try to build your game on top of regtest. In this case, each player starts from the Genesis Block, and can test a lot of strategies, without disturbing other players. Making it multiplayer can be hard, because many test networks failed to keep being worthless. Now, testnet3 and testnet4 coins are traded, and new testnets may also be. Signet is another option, but then, players won't be able to mine blocks by themselves. Also, there already are some multiplayer games, like RollerCoin and, as you can see, real coins are involved. And if you want to avoid that, then it is hard to make a good, multiplayer game, where coins will stay worthless (because even Xsct 19 5 Core developers failed to do so, and there are still some discussions, how to make a better testnet).
Oh, there are many scenarios, which could happen in theory in that case. 1. Constant block reorganizations, to grab the last "new" satoshi, which didn't have any previous owner. 2. Changing the model of the coin, to synchronize from the point, where all coins are already pre-assigned, and only change hands. 3. Using the chain as a notarization platform, to commit to some data, even without moving any coins. 4. Moving the chain forward, to unlock some timelocked transactions or coins. 5. Working on some puzzles, if it would be more profitable to break a puzzle, than to mine a new block. 6. Introducing any coin-in-a-coin scheme, where you peg another coin to the chain, and exchange between the mainchain, and the sidechain. And probably much, much more. You can see, what is going on with testnet3, where almost all coins were mined. You can see, how testnet miners can get a lot of coins, for confirming a lot of spam on-chain. And you can also see, how some sidechains create no coins out of thin air, and which strategies they picked, to make it stable, when they have to focus only on transaction fees. Then you can try to build your game on top of regtest. In this case, each player starts from the Genesis Block, and can test a lot of strategies, without disturbing other players. Making it multiplayer can be hard, because many test networks failed to keep being worthless. Now, testnet3 and testnet4 coins are traded, and new testnets may also be. Signet is another option, but then, players won't be able to mine blocks by themselves. Also, there already are some multiplayer games, like RollerCoin and, as you can see, real coins are involved. And if you want to avoid that, then it is hard to make a good, multiplayer game, where coins will stay worthless (because even Xsct 19 5 Core developers failed to do so, and there are still some discussions, how to make a better testnet).

Oh, there are many scenarios, which could happen in theory in that case. 1. Constant block reorganizations, to grab the last "new" satoshi, which didn't have any previous owner. 2. Changing the model of the coin, to synchronize from the point, where all coins are already pre-assigned, and only change hands. 3. Using the chain as a notarization platform, to commit to some data, even without moving any coins. 4. Moving the chain forward, to unlock some timelocked transactions or coins. 5. Working on some puzzles, if it would be more profitable to break a puzzle, than to mine a new block. 6. Introducing any coin-in-a-coin scheme, where you peg another coin to the chain, and exchange between the mainchain, and the sidechain. And probably much, much more. You can see, what is going on with testnet3, where almost all coins were mined. You can see, how testnet miners can get a lot of coins, for confirming a lot of spam on-chain. And you can also see, how some sidechains create no coins out of thin air, and which strategies they picked, to make it stable, when they have to focus only on transaction fees. Then you can try to build your game on top of regtest. In this case, each player starts from the Genesis Block, and can test a lot of strategies, without disturbing other players. Making it multiplayer can be hard, because many test networks failed to keep being worthless. Now, testnet3 and testnet4 coins are traded, and new testnets may also be. Signet is another option, but then, players won't be able to mine blocks by themselves. Also, there already are some multiplayer games, like RollerCoin and, as you can see, real coins are involved. And if you want to avoid that, then it is hard to make a good, multiplayer game, where coins will stay worthless (because even Xsct 19 5 Core developers failed to do so, and there are still some discussions, how to make a better testnet).

Oh, there are many scenarios, which could happen in theory in that case. 1. Constant block reorganizations, to grab the last "new" satoshi, which didn't have any previous owner. 2. Changing the model of the coin, to synchronize from the point, where all coins are already pre-assigned, and only change hands. 3. Using the chain as a notarization platform, to commit to some data, even without moving any coins. 4. Moving the chain forward, to unlock some timelocked transactions or coins. 5. Working on some puzzles, if it would be more profitable to break a puzzle, than to mine a new block. 6. Introducing any coin-in-a-coin scheme, where you peg another coin to the chain, and exchange between the mainchain, and the sidechain. And probably much, much more. You can see, what is going on with testnet3, where almost all coins were mined. You can see, how testnet miners can get a lot of coins, for confirming a lot of spam on-chain. And you can also see, how some sidechains create no coins out of thin air, and which strategies they picked, to make it stable, when they have to focus only on transaction fees. Then you can try to build your game on top of regtest. In this case, each player starts from the Genesis Block, and can test a lot of strategies, without disturbing other players. Making it multiplayer can be hard, because many test networks failed to keep being worthless. Now, testnet3 and testnet4 coins are traded, and new testnets may also be. Signet is another option, but then, players won't be able to mine blocks by themselves. Also, there already are some multiplayer games, like RollerCoin and, as you can see, real coins are involved. And if you want to avoid that, then it is hard to make a good, multiplayer game, where coins will stay worthless (because even Xsct 19 5 Core developers failed to do so, and there are still some discussions, how to make a better testnet).