Yes, you can provide your Abyssinian cat with enough exercise through indoor activities. Some ideas include playing with interactive toys, training sessions (such as teaching them new tricks), and setting up obstacle courses or tunnels for them to navigate. It’s also important to provide them with plenty of vertical space, such as cat trees or shelves, so they can climb and explore. Regular grooming sessions can also provide a form of physical activity for your cat. It’s important to note that every cat is different and has unique needs and preferences, so you’ll need to find what works best for your individual cat.