For family you could book a large table in a family friendly pub or restaurant and get some balloons from card factory which work out cheap then a cake and some candles. We will be doing this for my son on his birthday. That way everyone has the choice whether they come and join and pay their own way for food. Do you have a local hungry horse? They are great value for money. Have you looked at local play cafes and opening times depending on the day if they can offer group bookings you can just choose a select few of your LO friends and pay for their entry instead of hiring out exclusively, which I’m with you is way expensive and what I’ve ended up doing as I don’t have the space at home and well because he asked for one where he went to so many last year 🥲
I have booked my local leisure centre which includes a bouncy castle and toys in the hall for 1 hour and a room afterwards for food and cake cutting I will be getting a supermarket cake and decorations and doing all the food myself the total at the venue before food and Dec's is only £115 and that is for 20 children
We have a pub local that has a little soft play area inside. Like it’s in a separate area with a couple of tables. We went for dinner there with extended family. Then family had the choice of sitting at the main table and chatting or going into the soft play area to watch/play the children. Could be cheaper alternative. Obvs everyone just pays for themselves x
Do any local leisure centres have softplay rather than large independent ones? We have booked this and it's £80, £20 for a party room after and going to our own food and cake. Our local Dobbies has a softplay, not sure on cost to hire, but could be an idea for a small get together without booking separately, nice food/coffees and kids are entertained.
If you say where you live, maybe people can give you more specific ideas.
What about a museum and some lunch or a soft play centre with a cafe attached?
Im follow aswell