Using East Kalimantan as a case study, we are prioritising degraded forest for restoration and determining which restoration actions should be implemented across multiple ecosystem types, ranging from mangrove forest to montane forest. We are developing a forest restoration scenario that will be simulated using a combination of non-spatial and spatially explicit optimization algorithms. We will use a simulated annealing algorithm to optimize ‘where’ different restoration actions should occur with the objective to minimize the overall costs of restoration while achieving pre-defined targets for each restoration action. The targets for each restoration action will be determined using an exhaustive search algorithm to determine ‘how much’ of each restoration action should be allocated to ‘which’ restoration zones, in order to maximize the recovery of features (i.e. carbon sequestrated and mammal habitat restored) given particular levels of resources (e.g. budget, area extent).