There are tons of games that you can fit into 60m, 90m, or 180m tapes, when 48 KB/128 KB is all you got.
More like 20 or something.
Magazines like Your Sinclair and Crash would have such cassete tapes,
https://archive.org/details/YourSinclair37Jan89/YourSinclair...
https://www.crashonline.org.uk/
They would be glued into the magazine with adhesive tape, and later on to avoid them being stolen, the whole magazine plus tape would be in a plastic.
There are tons of games that you can fit into 60m, 90m, or 180m tapes, when 48 KB/128 KB is all you got.
More like 20 or something.
Magazines like Your Sinclair and Crash would have such cassete tapes,
https://archive.org/details/YourSinclair37Jan89/YourSinclair...
https://www.crashonline.org.uk/
They would be glued into the magazine with adhesive tape, and later on to avoid them being stolen, the whole magazine plus tape would be in a plastic.